For those who may be confused, like I was, when configuring R2 as to why you would make the default gateway for POOL1 192.168.1.1/24. It's because R1 will be acting as a DHCP relay agent. The 192.168.1.0 network will use R1's g0/1 interface as it's gateway. I had blinders on and jumped straight into step 1 configuring R2 without looking at the topology or reading through each step before starting.
Good morning Jeremy. I am following your videos, as well as the labs and flashcards. Excellent tutorial. Thanks a lot. Greetings from Costa Rica. God bless you for this excellent contribution, especially for those of us who cannot afford a formal course. Again, many blessings and may God continue to enlighten you.
For the people confused about how dhcp was able to assign each address correctly: Take into consideration there is 1 interface in all cases that was manually configured already. On 192.168.2.0/24 for example the request for an ip address comes from 192.168.2.1, therefore the address offered will come from that range. Same with the /30 address, the dchp server will look through its pools looking for the /30 subnet which the request came from and it will provide an address for that range.
Could that 1 interface use dhcp instead of be manually configured?, If that's possible then how will the dhcp server know which dhcp pool to pick the ip from?
Jeremy your way of teaching is the best one ever I have seen it and am following you you, after I finish CCNA, I will continue CCNP. From Tigray Africa
great video as usual, a number of thanks; and just I have a note : you must configure routes from and to the dhcp server as you said in the lecture video. in case there are people build the lab with theirselves as I do ^^
Yes, packet tracer is a bit slow. I was confused that why PC1 was not getting IP via DHCP - I had doubts but then I skipped some timer and re applied and it worked. Now i checked in the video and yes, I was right. It is so satisfying to complete a lab on our own correctly
hi Jeremy, thank you for this awesome video. as a matter of fact all your ccna videos have been great and im so confident with the exam, cant thank you enought.
Okay, so I just took the test and failed with 735. I got Boson because of Jeremy's recommendation (others too) so hopefully those viewing his channel will find my feedback here useful. I replied heavily on Exsim, and to a lesser extent Netsim. From the first question I knew I was hopelessly underprepared. The questions were presented very differently (few drag and drops, for example), but the biggest difference was the difficulty level. Most questions were very difficult. On Exsim there is a mix of difficult and easy questions with some space in the middle. I was expecting a lot of OSPF and subnetting but it seemed like every second question was IPv6. There were no explicit subnetting questions at all. The routing questions in Exsim are a lot easier than those in the exam. The test requires a LOT more granular knowledge than Exsim leads you to believe. It provides a lot of detail in the explanations but the questions themselves simply do not prepare you for the kind of test you will be taking. By the time I considered myself ready for the exam I was getting under 10 questions wrong on Exsim. In most cases it was under 5, my best being 2. And this was not simply a case of memorizing answers, I spent hours making sure I understood the concepts, I made sure I was able to properly interpret the routing tables, I was subnetting in my head etc. So long story short, not really sure where to go from here. Hopefully Boson will update Exsim to more accurately reflect test conditions. But in its current form I would strongly recommend looking elsewhere for your exam prep.
Best of luck on the next attempt! Boson is definitely the best out there for practice exams, but I've heard that Pearson's are better this time around (they were quite lacking in the previous versions).
@@JeremysITLab Thanks. Don't get me wrong, Boson was useful in clarifying many fundamental concepts. But it is grossly insufficient as exam prep. To be honest, the only similarity to the actual exam apart from the general subject matter was the fact that you couldn't click back. Types of questions, topology layout, and general focus are completely different.
@@Trotsky1981 Well that wasn't my experience or the experience of countless others, but then again everyone gets a different set of questions on exam day. Try sending your feedback to Boson, they're always trying to improve!
im really appriciate all that videos. i want to start watching the videos to practice to the 200-301 exam. but i want to ask something before im starting watching your vidoes, do you solve old ccna exam qustions in that videos?
DHCP failed APIAP is being used, message is received when I tried to get IP address dynamically from PC1 but there's no problem from PC2. I used packet tracer on windows 11. What's the problem? Who can help me to fix this in this Lab
Why do we need identical DHCP pools on switches if we use VLANs in our network? I made a lab of my own for additional practice with DHCP config, I decided I would include VLANs in my network topology. Initially the DHCP process failed to work when receiving discover messages from hosts within VLANs. I did some research, and found that I needed essentially matching DHCP pools on my switch to go with those configured on the DHCP server (the router) for any VLANs connected to it in order for the DHCP process to work. I'm curious as to why this is needed, as it seems extremely redundant/inefficient because I would think that the trunking interface should already be segregating the DHCP ip pools to their respective VLANs properly based on which sub int the message arrived in... Anyways, I would love an explanation if anyone knows why, thanks in advance!
@@JeremysITLab yes! The discover message reaches the server and then gets dropped, with the response “the dhcp server does not have a pool for the interface. It drops the packet”. However I have at this point quintuple-checked that the dhcp pool network does indeed match with the vlan, and the sub-int that the discover message enters my router through is also appropriately configured with an ip in the network and the proper dot1q encapsulation.
How does dhcp know that pool1 belongs to int g0/1? Does it just it check to see if it has a pool network that matches the subnet of the interface the discover message arrives in?
a very good lab, helps to digest well. Unfortunately I'm using packet Tracer 7.3.1, the lab Day 39 I downloaded is not compatible to it, so I have to create a one, but it's a chance to practice previous learned knowledge, such as static routing, etc. Many thanks to Jeremy.
Hi Jeremy. Quick question; How exactly does the DHCP server in this instance know who to serve from which pools? If they arrive on local interfaces, i guess the server takes from the subnet specified in that range, but what if you have 10 vlans on 2 separate routers acting as DHCP relay agents? How does the DHCP server know which pool to reserve an address from to which clients? does the relay agent specify the subnet from the interface the request was received on?
Actually i found this myself in the cisco documentation; "DHCP Address Pool Selection DHCP defines a process by which the DHCP server knows the IP subnet in which the DHCP client resides, and it can assign an IP address from a pool of valid IP addresses in that subnet. The process by which the DHCP server identifies which DHCP address pool to use to service a client request is described in the "DHCP Address Pool Selection" section. The DHCP server identifies which DHCP address pool to use to service a client request as follows: •If the client is not directly connected (the giaddr field of the DHCPDISCOVER broadcast message is non-zero), the DHCP server matches the DHCPDISCOVER with a DHCP pool that has the subnet that contains the IP address in the giaddr field. •If the client is directly connected (the giaddr field is zero), the DHCP server matches the DHCPDISCOVER with DHCP pool(s) that contain the subnet(s) configured on the receiving interface. If the interface has secondary IP addresses, the subnets associated with the secondary IP addresses are examined for possible allocation only after the subnet associated with the primary IP address (on the interface) is exhausted. Cisco IOS DHCP server software supports advanced capabilities for IP address allocation. See the "Configuring DHCP Address Allocation Using Option 82" section for more information" For anyone wondering.
Thank you Jeremy, your videos and labs are great, keep it up! Did you upgrade your version of packet tracer for this lab? I'm not able to view the lab in my current version 7.3.1...
Great lab and course. How does R2 assign the DHCP pool ? For example why did the ipconfig /renew from PC2 provide an IP address from DHCP POOL2 instead of POOL1 or POOL3 ?
Hello Jeremy, many compliments for your great explanation capacity! A question for you: how I can find which IP is taken by a switch configured as "IP DHCP CLIENT"? The switch says that only once, when you activate the functionality in the interface. But how I can discover the IP taken by the switch, in a second time? Thanks and greetings from Italy. Carlo
Jeremy I do have a doubt on the ip helper address ,in some configuration tutorial they are assigning the ip helper address of the R2 g0/1 address and providing the static route from both router to each other . In your case you have issued the ip helper address of R2 G0/0 address ... so i presume can we issue the ip helper address of any of the interface from the dhcp router ?
Hey Jeremy, I saw in another comment that you said the course is only about 70% complete. Any chance you could make a quick post letting us know which are the most important topics you think are missing from the course (that you plan to make videos on) so that we know precisely what else we need to study if we finished all of your videos as of today? Thanks! Otherwise, awesome videos! Best video lectures I have ever come across for any subject by a mile, and I have used a lot of different courses!
The most important topics are any of the ones on the official exam topics list you don't feel confident about! Check out the list and make sure you know it all: learningnetwork.cisco.com/s/ccna-exam-topics
Thanks Jeremy ! I have question 1: when command ipconfig /renew, how come the router assign the ip address from pool 2, why not from pool1 or pool 3, is there any sequence or randamly assigned. if we want a perticular network to be assigned for the perticular LAN what is the command. Q2. 203.0.113.1 is the ip address for the interface G0/0 or server ip address. Q3. for ip helper address, can be assigned any address with in that network, if network with /29 used.
1: Because it received the Discover message on its G0/1 interface 2: It is the IP address of R2's G0/0 interface, and R2 is the DHCP server. 3: Sorry, I don't understand the question. Why /29?
@@JeremysITLab sir, i mean, what if one switch or one router is not working, then according to your diagram the whole connection wiill broken down! then according to first hop redundency protocol(HSRP) ,WHAT WILL BE THE SOLUTION DIAGRAM?
50 to 60 days in total I think. Thanks for your interest, you can buy the course here: jeremysitlab.teachable.com/ It's still not complete there either, but there are 6 more videos than on UA-cam.
Hi Jeremy, as usual, you are the best of the best so thanks a lot for your great work, but here I have a question: you created a pool start from 0 to 10 so why you got IP address 192.168.1.12 for PC1 and I think you got .11 for PC2, I think it shouldn't be greater than .10 ??? Thank you very much.
when I was testing the 'ipconfig /renew' command in PC1 For many times, it shows DHCP request fails.. Since you have mentioned it in the video it takes time to get it..i tried many times no result.. What might be the issue?
Good Tutorial ! On the packet tracer demo, I would like to ask one question, when we setup the 192.168.1.0 network, Don't we have to add a static route on R2 to let it know where this network is and where to route the DHCP packets from R2 (what should be the next hop). Also G0/1 interface IP address configuring step on R1 is also missing. Correct me if i am wrong? I am just a beginner
Hi Jeremy, Thanks for this wonderful course. It has been very benefiticial to me. I have 2 questions. 1) When you issue ipconfig /renew at PC2, how the DHCP know that it shold assign the dynamic address from subnet 192.168.2.0/24 and not the other? Do I need to configure manually G0/1 of R2 as 192.168.2.1 ? 2) Along the same line.. on day 18 18 when you where were talking about SVI. How the DHCP in the router knows what subnet to assign for the terminals coming from the different VLAN, given that the default route between the switch and the router is now untagged? I have taken the consideration that the Switch has to have DHCP relay enabled. Thanks and looking forward to your advise.
1) Because R2 received the DCHP discover message on it's G0/1 interface, which is in the 192.168.2.0/24 subnet. 2) When a DHCP relay agent forwards a DHCP message to the server, it includes information about which subnet the request came from.
The server selects which pool to use based on which interface it receives the Discover message from the client; it selects the pool that matches the interface’s IP address (or, in a relay situation, the relay agent tells the server the IP address of the interface the Discover message was received on)
Thanks for this lovely course....can you please tell me which version of packet tracer you are using because while using packet tracer 7.3.1 its not supporting...
hi Jeremy what if our topology adds one link between router 1 on (interface g0/2 ) and a router 3 on (interface g0/0)and there is also connected a LAN to outer 3 on (int g0/1 )..... ( Q.1 ) is it possible to configure between R1's G0/2 interface and R3's G0/1 interface as DHCP Client for both interface on the link? thanks for your service
hi sir , thanks for this videos. but sir boson-netsim is so costly for me can you do something for me. i am a student and i save my pocket money ( its almost $80 ) for bye this boson-netsim. i know that is not enough but please do somthing.
@@JeremysITLab ok sir , but i have a question ( vlan and trunking topic ) image url : drive.google.com/file/d/1n94orDWLyZ4UtRcDHdANSiYx7ZIwMZwu/view?usp=sharing
For those who may be confused, like I was, when configuring R2 as to why you would make the default gateway for POOL1 192.168.1.1/24. It's because R1 will be acting as a DHCP relay agent. The 192.168.1.0 network will use R1's g0/1 interface as it's gateway. I had blinders on and jumped straight into step 1 configuring R2 without looking at the topology or reading through each step before starting.
Thanks Jeremy, the world would be a better place with more of your kind.
Thanks a bunch.
Thanks for your kind words :)
Good morning Jeremy. I am following your videos, as well as the labs and flashcards. Excellent tutorial. Thanks a lot. Greetings from Costa Rica. God bless you for this excellent contribution, especially for those of us who cannot afford a formal course. Again, many blessings and may God continue to enlighten you.
Thank you for your comment, Mauricio, and thank you for your support! :)
Hey Jeremy
I passed my CCNA today 🎉🎉🎉
Your videos were a massive help to explaining the tricky subjects
best way to start the morning: with Jeremy's IT Lab!
thank you so much jeremy and have a nice day :D
Thanks Ariadna, hope you have a nice day too ;)
この度、CCNAに合格することができました。
勉強材としてJeremyさんの動画が7割でした。
私自身は英語得意ではないが、非常に分かりやすかったです。
ありがとうございます！
おめでとうございます！
英語得意ではない方にとっても、私の動画が役に立ててうれしいです🙂
For the people confused about how dhcp was able to assign each address correctly:
Take into consideration there is 1 interface in all cases that was manually configured already.
On 192.168.2.0/24 for example the request for an ip address comes from 192.168.2.1, therefore the address offered will come from that range.
Same with the /30 address, the dchp server will look through its pools looking for the /30 subnet which the request came from and it will provide an address for that range.
Could that 1 interface use dhcp instead of be manually configured?, If that's possible then how will the dhcp server know which dhcp pool to pick the ip from?
Jeremy your way of teaching is the best one ever I have seen it and am following you you, after I finish CCNA, I will continue CCNP. From Tigray Africa
great video as usual, a number of thanks; and just I have a note : you must configure routes from and to the dhcp server as you said in the lecture video. in case there are people build the lab with theirselves as I do ^^
Yeah if you build the lab yourself you'll have to do basic setup like that!
Yes, packet tracer is a bit slow. I was confused that why PC1 was not getting IP via DHCP - I had doubts but then I skipped some timer and re applied and it worked. Now i checked in the video and yes, I was right. It is so satisfying to complete a lab on our own correctly
this and DNS are amazing labs!
Hello Jeremy , just to say thank you for your great channel and great content you are delivring . best..
Thanks Samir, I appreciate it :)
Hi, Jeremy i did the same but wouldn’t work, did you pre configured the interfaces of routers?
Thanks Jeremy, my favorite instructor to be honest!🦸🦸🦸
Thanks Donald :)
hi Jeremy, thank you for this awesome video. as a matter of fact all your ccna videos have been great and im so confident with the exam, cant thank you enought.
Okay, so I just took the test and failed with 735. I got Boson because of Jeremy's recommendation (others too) so hopefully those viewing his channel will find my feedback here useful. I replied heavily on Exsim, and to a lesser extent Netsim. From the first question I knew I was hopelessly underprepared. The questions were presented very differently (few drag and drops, for example), but the biggest difference was the difficulty level. Most questions were very difficult. On Exsim there is a mix of difficult and easy questions with some space in the middle. I was expecting a lot of OSPF and subnetting but it seemed like every second question was IPv6. There were no explicit subnetting questions at all. The routing questions in Exsim are a lot easier than those in the exam.
The test requires a LOT more granular knowledge than Exsim leads you to believe. It provides a lot of detail in the explanations but the questions themselves simply do not prepare you for the kind of test you will be taking. By the time I considered myself ready for the exam I was getting under 10 questions wrong on Exsim. In most cases it was under 5, my best being 2. And this was not simply a case of memorizing answers, I spent hours making sure I understood the concepts, I made sure I was able to properly interpret the routing tables, I was subnetting in my head etc. So long story short, not really sure where to go from here.
Hopefully Boson will update Exsim to more accurately reflect test conditions. But in its current form I would strongly recommend looking elsewhere for your exam prep.
Too bad, good luck next time. Thanks for the info!
Thanks for the feedback.
Best of luck on the next attempt! Boson is definitely the best out there for practice exams, but I've heard that Pearson's are better this time around (they were quite lacking in the previous versions).
@@JeremysITLab Thanks. Don't get me wrong, Boson was useful in clarifying many fundamental concepts. But it is grossly insufficient as exam prep. To be honest, the only similarity to the actual exam apart from the general subject matter was the fact that you couldn't click back. Types of questions, topology layout, and general focus are completely different.
@@Trotsky1981 Well that wasn't my experience or the experience of countless others, but then again everyone gets a different set of questions on exam day. Try sending your feedback to Boson, they're always trying to improve!
The problem with vlan 100 is that the pool is /29, and the reserved addresses overlap.
spotted that while he was scrolling through the running config, happy to see i wasnt alone!
Thanks Jeremy, way to go 🙌
Thanks Frank :)
6:55 Hi Jeremy! When I enter the ip-helper address as 192.162.2.1, PC1 still gets the IP from dhcp server. Can you explain how?
im really appriciate all that videos. i want to start watching the videos to practice to the 200-301 exam. but i want to ask something before im starting watching your vidoes, do you solve old ccna exam qustions in that videos?
This course is for the current version of the CCNA
DHCP failed APIAP is being used, message is received when I tried to get IP address dynamically from PC1 but there's no problem from PC2. I used packet tracer on windows 11. What's the problem? Who can help me to fix this in this Lab
Why do we need identical DHCP pools on switches if we use VLANs in our network? I made a lab of my own for additional practice with DHCP config, I decided I would include VLANs in my network topology. Initially the DHCP process failed to work when receiving discover messages from hosts within VLANs. I did some research, and found that I needed essentially matching DHCP pools on my switch to go with those configured on the DHCP server (the router) for any VLANs connected to it in order for the DHCP process to work. I'm curious as to why this is needed, as it seems extremely redundant/inefficient because I would think that the trunking interface should already be segregating the DHCP ip pools to their respective VLANs properly based on which sub int the message arrived in... Anyways, I would love an explanation if anyone knows why, thanks in advance!
You don't! Are you sure the clients' broadcast messages were reaching the DHCP server?
@@JeremysITLab yes! The discover message reaches the server and then gets dropped, with the response “the dhcp server does not have a pool for the interface. It drops the packet”. However I have at this point quintuple-checked that the dhcp pool network does indeed match with the vlan, and the sub-int that the discover message enters my router through is also appropriately configured with an ip in the network and the proper dot1q encapsulation.
Thanks Jeremy great explanation
How does dhcp know that pool1 belongs to int g0/1? Does it just it check to see if it has a pool network that matches the subnet of the interface the discover message arrives in?
Yeah, that's right
a very good lab, helps to digest well. Unfortunately I'm using packet Tracer 7.3.1, the lab Day 39 I downloaded is not compatible to it, so I have to create a one, but it's a chance to practice previous learned knowledge, such as static routing, etc. Many thanks to Jeremy.
Download the latest version, then you'll be able to open all the labs ;)
Hey Jeremy what is classless routing, in this lab. R1 learn 192.168.2.0 network via g0/0 and R2 learn 192.168.1.0 network via g0/0 pls tell me
Hi Jeremy.
Quick question;
How exactly does the DHCP server in this instance know who to serve from which pools?
If they arrive on local interfaces, i guess the server takes from the subnet specified in that range, but what if you have 10 vlans on 2 separate routers acting as DHCP relay agents?
How does the DHCP server know which pool to reserve an address from to which clients? does the relay agent specify the subnet from the interface the request was received on?
Actually i found this myself in the cisco documentation;
"DHCP Address Pool Selection
DHCP defines a process by which the DHCP server knows the IP subnet in which the DHCP client resides, and it can assign an IP address from a pool of valid IP addresses in that subnet. The process by which the DHCP server identifies which DHCP address pool to use to service a client request is described in the "DHCP Address Pool Selection" section.
The DHCP server identifies which DHCP address pool to use to service a client request as follows:
•If the client is not directly connected (the giaddr field of the DHCPDISCOVER broadcast message is non-zero), the DHCP server matches the DHCPDISCOVER with a DHCP pool that has the subnet that contains the IP address in the giaddr field.
•If the client is directly connected (the giaddr field is zero), the DHCP server matches the DHCPDISCOVER with DHCP pool(s) that contain the subnet(s) configured on the receiving interface. If the interface has secondary IP addresses, the subnets associated with the secondary IP addresses are examined for possible allocation only after the subnet associated with the primary IP address (on the interface) is exhausted.
Cisco IOS DHCP server software supports advanced capabilities for IP address allocation. See the "Configuring DHCP Address Allocation Using Option 82" section for more information"
For anyone wondering.
Thanks for the video Jeremy!
Thanks for watching and leaving a comment :)
after 5 minutes of your video
CLI of PC2 - IPCONFIG/RENEW
my CPT says INVALID COMMAND
The command is ipconfig /renew, not ipconfig/renew
Thanks Jeremy!
Thanks for watching and leaving a comment :)
Thank you Jeremy, your videos and labs are great, keep it up! Did you upgrade your version of packet tracer for this lab? I'm not able to view the lab in my current version 7.3.1...
Yep, Cisco released a new version (8.0). Download that and you'll be able open this one (and the labs after it)
@@JeremysITLab Thanks Jeremy - much appreciated!
Great lab and course. How does R2 assign the DHCP pool ? For example why did the ipconfig /renew from PC2 provide an IP address from DHCP POOL2 instead of POOL1 or POOL3 ?
thx, great as always👏❤️👏
Thanks Julian!
I really think you should put your series of videos on udemy too, it will become the best seller in no time :)
Thanks, maybe after the course is finished ;)
Hello Jeremy, many compliments for your great explanation capacity! A question for you: how I can find which IP is taken by a switch configured as "IP DHCP CLIENT"? The switch says that only once, when you activate the functionality in the interface. But how I can discover the IP taken by the switch, in a second time? Thanks and greetings from Italy.
Carlo
Jeremy I do have a doubt on the ip helper address ,in some configuration tutorial they are assigning the ip helper address of the R2 g0/1 address and providing the static route from both router to each other . In your case you have issued the ip helper address of R2 G0/0 address ... so i presume can we issue the ip helper address of any of the interface from the dhcp router ?
Hey Jeremy, I saw in another comment that you said the course is only about 70% complete. Any chance you could make a quick post letting us know which are the most important topics you think are missing from the course (that you plan to make videos on) so that we know precisely what else we need to study if we finished all of your videos as of today? Thanks!
Otherwise, awesome videos! Best video lectures I have ever come across for any subject by a mile, and I have used a lot of different courses!
The most important topics are any of the ones on the official exam topics list you don't feel confident about! Check out the list and make sure you know it all: learningnetwork.cisco.com/s/ccna-exam-topics
Great lecture and lab!
Hi Jeremy all your lectures are fantastic. But, why have you not included DHCPv6 topic in ur playlist?
Thanks! This course focuses on what you need for the CCNA exam, so I haven't covered DHCPv6.
Awesome video, Jeremy!
Thanks Fabian!
Thanks Jeremy ! I have question 1: when command ipconfig /renew, how come the router assign the ip address from pool 2, why not from pool1 or pool 3, is there any sequence or randamly assigned. if we want a perticular network to be assigned for the perticular LAN what is the command. Q2. 203.0.113.1 is the ip address for the interface G0/0 or server ip address. Q3. for ip helper address, can be assigned any address with in that network, if network with /29 used.
1: Because it received the Discover message on its G0/1 interface
2: It is the IP address of R2's G0/0 interface, and R2 is the DHCP server.
3: Sorry, I don't understand the question. Why /29?
How does the DHCP server know which addresses to give to pc1? Is it checking its routing table?
Should this be configured after ospf or any other routing mechanisms right? else these packets cant find their way to their respective routers?
very good lesson, thank you so much
Thank you :)
if i think about the redundency concept, if i make crisscross connection between the routers and switch?
then ?
Hi, sorry I'm not sure what the question is!
@@JeremysITLab sir, i mean, what if one switch or one router is not working,
then according to your diagram the whole connection wiill broken down!
then according to first hop redundency protocol(HSRP) ,WHAT WILL BE THE SOLUTION DIAGRAM?
How many total days is there going to be with the complete course? I want to buy the videos since i really like this great content Jeremy puts out.
50 to 60 days in total I think.
Thanks for your interest, you can buy the course here: jeremysitlab.teachable.com/
It's still not complete there either, but there are 6 more videos than on UA-cam.
Hi Jeremy, as usual, you are the best of the best so thanks a lot for your great work, but here I have a question: you created a pool start from 0 to 10 so why you got IP address 192.168.1.12 for PC1 and I think you got .11 for PC2, I think it shouldn't be greater than .10 ???
Thank you very much.
.1 to .10 is the excluded address range. The pool is 192.168.1.0/24.
Thanks Jeremy ! I would like to know how far are you in completing this CCNA course ?
The course is about 70 - 75% complete.
when I was testing the 'ipconfig /renew' command in PC1 For many times, it shows DHCP request fails..
Since you have mentioned it in the video it takes time to get it..i tried many times no result..
What might be the issue?
i have the same problem as well. PC2 works fine but PC1 doesnt work.
I have question sir. why is it that you manually configure R2 and R1 default gateway? can't they get an IP address from DHCP?
Good Tutorial ! On the packet tracer demo, I would like to ask one question, when we setup the 192.168.1.0 network, Don't we have to add a static route on R2 to let it know where this network is and where to route the DHCP packets from R2 (what should be the next hop). Also G0/1 interface IP address configuring step on R1 is also missing. Correct me if i am wrong? I am just a beginner
yes, you need to add a static route in R2 , ip route 192.168.1.0 255.255.255.0 203.0.113.2
Sir, you deserve more but I can't do more than a comment, like, share and subscribe!
I meant...
Jeremy, i have tried the same but with dhcp services on server but i won't work
It doesn’t work for me, Pc1 don’t have dhcp
Hi Jeremy, just config dynamic routing protocols like ( OSPF, RIP, IS-IS, EIGRP) then PC1 will get IP add immediately !!!
I'm not sure I understand...dynamic routing protocols don't give IP addresses to PCs. Is that some weird bug in packet tracer you're talking about?
Many thanks Jeremy, sorry but where can I get the exam format of CCNA 200-301, the one which you always display in your videos.
Do a google search for 'ccna exam topics', it'll be the top result!
Hi Jeremy,
Thanks for this wonderful course. It has been very benefiticial to me.
I have 2 questions.
1) When you issue ipconfig /renew at PC2, how the DHCP know that it shold assign the dynamic address from subnet 192.168.2.0/24 and not the other? Do I need to configure manually G0/1 of R2 as 192.168.2.1 ?
2) Along the same line.. on day 18 18 when you where were talking about SVI. How the DHCP in the router knows what subnet to assign for the terminals coming from the different VLAN, given that the default route between the switch and the router is now untagged? I have taken the consideration that the Switch has to have DHCP relay enabled.
Thanks and looking forward to your advise.
1) Because R2 received the DCHP discover message on it's G0/1 interface, which is in the 192.168.2.0/24 subnet.
2) When a DHCP relay agent forwards a DHCP message to the server, it includes information about which subnet the request came from.
What happen if I will not give default-router command on dhcp server?
Hi Jeremy how do we know that DHCP server is R2 in this case
By 'we' I guess you mean the network engineer/admin? Because we designed/configured the network and decided R2 will be the DHCP server!
Thanks
One thing I dont understand, How does each device know which pool it should be using?
The server selects which pool to use based on which interface it receives the Discover message from the client; it selects the pool that matches the interface’s IP address (or, in a relay situation, the relay agent tells the server the IP address of the interface the Discover message was received on)
Hello Mr.Jeremy
I would like to ask you if you are going to make videos about network automation or not?
Thank you so much for the videos
I will cover all CCNA exam topics
@@JeremysITLab
Can you please tell me when would you publish the automation videos, because i am waiting for them
Thanks for this lovely course....can you please tell me which version of packet tracer you are using because while using packet tracer 7.3.1 its not supporting...
Download the latest version from Cisco, then you'll be able to open all files.
hi Jeremy are you doing wireless ? boson do they have wireless labs.
I will cover all CCNA exam topics. Boson NetSim doesn't have wireless labs (you can check the list of labs on their site)
@@JeremysITLab I am studying for long now but keep forgetting things as I study further.
dont have confidence to take exam.
hi Jeremy what if our topology adds one link between router 1 on (interface g0/2 ) and a router 3 on (interface g0/0)and there is also connected a LAN to outer 3 on (int g0/1 )..... ( Q.1 ) is it possible to configure between R1's G0/2 interface and R3's G0/1 interface as DHCP Client for both interface on the link?
thanks for your service
Try it out in packet tracer!
Hello Jeremy, could you send me the rest of the Flascard files, packet tracer from day 40 (SNMP and the other courses
This is the last lab currently available on UA-cam. I will update the Google Drive when the next lab is uploaded (tomorrow).
your osm!!!!....can you tell when will you upload wireless,ppp,mpls
Not sure when
Can anyone explain why when setting the default route we use r1 g0/1 instead of g0/0
Nvm, i kept watching. I get it. We set up the default router for each network
Thank you
Thanks for watching :)
Hy sir have you done any pre configuration before starting the lab.becaz I'm unable get ip address from in pc1 .it show DHCP request failed.
Download my lab file and check the configurations I did ;)
@@JeremysITLab after assigning address to interfaces have you done description also.
another topic completed. 😀
Waiting for SNMP
Coming soon!
How does R2 decide what pool to offer the IP address from to R1's G0/0 interface?
It receives the broadcast on its G0/0 interface, which is in the 203.0.113.0/30 network. So it assigns an address from that pool.
@@JeremysITLab Would R2 assign R1 an address (and which one would it be) if there was no POOL3 with 203.xx.xx.xx?
@@voiceofreason314 Nope, it won't assign an address if it doesn't have an appropriate pool.
JJ thanks man
Thanks Glenn!
hi Jeremy....Is your channel video okay for vendor exam Or need I to attend in any paid course?
You don't need a paid course, but I recommend books (official cert guides by Wendell Odom, vol 1 and vol 2)
@@JeremysITLab Thanks.
thanks dear
Thanks for watching and leaving a comment :)
@@JeremysITLab I really appreciate your effort am so proud of you
tysm
this lab not open on packet tracer, like something wrong
Download the latest version of packet tracer
how did G0/1 on R1 got its ip address ?
I configured it
👍
Thanks for watching :)
hi sir , thanks for this videos. but sir boson-netsim is so costly for me can you do something for me.
i am a student and i save my pocket money ( its almost $80 ) for bye this boson-netsim. i know that is not enough but please do somthing.
Sorry, I can't control the price of Boson's products.
@@JeremysITLab ok sir , but i have a question ( vlan and trunking topic ) image url :
drive.google.com/file/d/1n94orDWLyZ4UtRcDHdANSiYx7ZIwMZwu/view?usp=sharing
Jeremy can you send me some labs to practice.
I have plenty of free labs on my channel!
Okay thanks.
🇵🇭🇵🇭🇵🇭
Thanks for watching and leaving a comment :)
Thanks