How to configure DHCP server and WLC with different Vlans
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- เผยแพร่เมื่อ 17 ส.ค. 2021
- The Dynamic Host Configuration Protocol is a network management protocol used on Internet Protocol networks for automatically assigning IP addresses and other communication parameters to devices connected to the network using a client-server architecture.
A wireless LAN controller is used in combination with the Lightweight Access Point Protocol to manage light-weight access points in large quantities by the network administrator or network operations center. The wireless LAN controller is part of the Data Plane within the Cisco Wireless Model.
In computer networking, a wireless access point, or more generally just access point, is a networking hardware device that allows other Wi-Fi devices to connect to a wired network.
A virtual LAN is any broadcast domain that is partitioned and isolated in a computer network at the data link layer. LAN is the abbreviation for local area network and in this context virtual refers to a physical object recreated and altered by additional logic.
#vlan #intervalnrouting #DHCP #WLC #Wireless #Cisco #Router #routing #Switch #switching #PacketTracer #AcessPoint #AP
its amazing explanation, which i will consider one of the best on youtube
Thanks a million 🙏🏻
thank you very much brother appreciated
Anytime 😊
You resolve my bigger problem 👍👍
Hi, happy to hear that 🙂
Thank you
Anytime 🙏🏻
Great
Thanks 🙏🏻
Thanks for the video, I think your laptop did get IP from the right range.. i saw that when you hovered over the laptop ,, which that was happening to me as well, so not sure if that a broken or not.. thanks again
You could use AP Groups to decide which SSIDs you want to broadcast out of specific groups of APs ;)
Thanks for your support 👍👍👍
if you want to connect each laptop to a specific AP, use Groups and decide which WLAN is part of that AP.
👍🏻
Thank you for this wonderful and enlightening video. I have learned more in your 30-minute video than from an entire 5 days of networking training. So thank you. However, I have one observation from the exercise; I noticed that after connecting Laptops through the access point, the access points don't broadcast the IP addresses from the DHCP server. It gives the laptops different IP addresses. And noticed you had the same IP addresses when you hovered over the laptop exactly at minute thirty-one fifty-six seconds at @31:56. Could you please advice on how to fix it? Thank you once again
First thanks for your feedback.
So, did you try it the same in your own and had the mentioned issues? I noticed the ip address that you said, wow eagle-eyes! So lemme see if I still have the file to check it.
But in general, Packet Tracer is a software with many limitations, sometimes, things from real world don’t work here.
Hi Amin, I have a question.
You have configured the interfaces of the floor switches that are connected to the APs in access mode. Since several WLANs are configured in the APs (to which different VLANs are associated), would it not be necessary to configure the link between the switch and the AP as a trunk?
Yep, but as long as I’ve chosen layer 2 switches for floors, this option (having trunk ports) wasn’t available for me.
@@aminsedighfar Sorry but I didn't get what you mean. Trunks can be done on layer 2 switches
@@marcobasso1929 My bad, I meant dot1q
@@marcobasso1929 And also I can remember at the beginning I wanted it to be more classified. Then the idea had been changed a little bit, like having one Vlan per switch/floor.
@@aminsedighfar Ok, thanks!
Hello Sir, do you have a video on configuring these across the networks? Like WLC would be behind a router, and LAPs will be behind other routers, the routers are connected via GRE or smth. I would really appreciate it if you would help me a hand on this one
That’s too specific, sorry I don’t have it.
hello, one question, is it possible to assign an ip for the laptop through AP with the DHCP server, because in the video the laptop didn't have an ip and i need to do that
Hi,
Not the APs in packet tracer. However, with a controller and DHCP server
Hi I see that u made all the ports Trunk including for the PC next to wlc. that is a misconfiguration right?
Yes & No! there's no need for that port to be trunk, but during this videos I just wanted to show you can choose a range of interfaces to configure.
@@aminsedighfar Ok. Thanks for the instant response.
@@vinaygupta2436 no worries 😌
Hi amin..what version of cisco are you using?
Hi Nur, do you mean what version of Packet Tracer? I’m afraid I cannot remember exactly, I recorded this video Aug 2021 and Packet Tracer was on the latest version.
Hi, at around 23 minutes, what was the problem when the APs did not show up on the interface? Im having a similar problem and i dont understand your explanation in the video. You entered the WLC IP's for the DHCP server before configuring them in the actual WLC which led the access points to try and connect to non existing IP's and cause a problem...? How did you resolve the issue? Thanks !
Hey, thanks for the comment it made me to re-watch it again after one year. So it turned out to me at first when I configured the DHCP server I added wrong WLPC IP Addresses. For each VLan I added a specific one, for example 192.168.3.10 for Vlan3 while we just have 192.168.1.10 for WLPC. So the problem was there.
@@aminsedighfar Hmm, i did exactly like you and put the management IP on eacH dhcp scope WLCP and wlc still does not detect AP..
@@OtoKirooReborn maybe the problem is with Packet Tracer. Sometimes it doesn’t work properly.
Hi, I just went through it and we need to enable the flexconnect for everything to work.
@@lunycelicourt7381 in packet tracer yes, but not in the real world scenario
Hello everyone, I found the cause of the problem with wrong IP addresses on wireless clients, put the WLC and AP in the same untagged subnet, because the WLC and AP create a CAPWAP tunnel and communicate through this tunnel in the same subnet. After this, everything working fine.
Was there a problem? I can’t remember, can you mention the time on the video.
Hey, could you explain what happed at 23.28 frame? What was the issue with Light Weight Access Point didn't show up?
I don't understand what you did to get those Light Weight Access Points to be visible in the WLC (Wireless) tab in WLC
Sorry! It is very confusing Could you tell me what I have to do I followed your video and stuck with this issue now Can't understand what you are saying about the dhcp and ip routing
Can you do a new video for the same setup again?
Hey, thanks for the comment it made me to re-watch it again after one year. So it turned out to me at first when I configured the DHCP server I added wrong
WLPC IP Addresses. For each VLan I added a specific one, for example 192.168.3.10 for Vlan3 while we just have 192.168.1.10 for WLPC. So the problem was there.
Hopefully it helps 🤞🏻
Hey thanks for your explain but I have more than 10 vlans so it not helpful to have 10 SSID I want to have one SSID and to assign each user to his specific vlan ? any Idea
In the real world or Packet Tracer ?
@@aminsedighfar as you like please if you have idea
@@aleemohoo4958 So the concept is a little different in Wi-Fi. In wired networks you can have different VLANs on a cable, however, basically in Wi-Fi for each SSID you should come up with one VLAN. But there's a solution for what you have asked: Dynamic VLAN Assignment. In order for that to happen you do need a RADIUS server, then firstly you set different usernames and passwords, secondly assign each username to a specific VALN( all have to be done on the RADIUS server), finally sending them towards your SSID. In this way, based on the username and password that each user will insert, the RADIUS server will do all of the tasks afterwards and users are to have IP addresses in the proper VLAN IP range.
@@aminsedighfar well thanks am using only the AD , with same your lab diagram the only difference was to map each user to different Vlan provided by one SSID, I think I need to use ISE or something else to map the users
Hello Sir, I have some issue, my wired computer (connected to SW L2) could not get IP adress from DHCP. I have configured all pool on Server but still not working.
My only modification was vlan name name (10,20,30 and 40 instead of 1,2,3 and 4)
@@katmuhong3435 until what length of time of the video have you followed?
@@aminsedighfar until 13:15 .
@@katmuhong3435 did you add “IP helper”command to the core switch? Are the access and trunk ports of the switches configured properly? Did you add the default gateway in DHCP server?
@@katmuhong3435 it’s highly likely you’re missing a step!
You confused us while putting IP on interfaces and never clarified which IPs to put on interfaces - is it the IP address of WLC and Subnet mask of WLC and gateway of VLANs ?
at around 24:18
For which interfaces?
@@aminsedighfar (I was referring to interfaces inside controller of WLC, I figured it out though, your video is great by the way !) This said, Can you please explain me why are the laptops not getting IPs from DHCP even though Access points are getting IPs from DHCP ?
@@sandeepneutron471 thanks for the comment, I recorded this videos around 2 years ago (more or less); I can remember a part of that was removed by mistake during editing and I understood 6 months after uploading. So maybe that missing part is the cause of confusion for you.
Please let me find the packet tracer file, check the configurations, then I’ll get back to you.
@@aminsedighfar Thank you Amin ! That's amazing ! Please keep on doing these videos - you are amazinng !
I've followed the tutorial in your video, but in the topology I haven't gotten a DHCP ip in a different VLAN
Maybe you’ve made a typing mistake while typing “ ip helper “ command. This video and instructions will work on everything Packet Tracer version.
I've configured it many times, but it's still the same problem, but when tested via the command prompt the computer can ping all vlans
did it work or what?
@@nurwahidah85690 I guess worked. So do your PCs have correct IP addresses? And also did you check your switches ports (Access or Trunk)?
@@aminsedighfar already in trunk mode, but the ip on the pc is still using ip vlan1, but can connect to all vlans.
sorry if i ask a lot
@@nurwahidah85690 no worries, is your PCs gateway address correct? Did you set different DHCP pools in your DHCP server ?!?
hi, i did everything as u did, but client which is connected to AP's does not get ip addresses......
Have you checked the PC that is connected to the same switch with AP? Did that PC get IP? Are interfaces of all switches configured correctly?
@@aminsedighfar AP gets IP dynamically from DHCP server, but when i connect Wireless client to that AP it does not get IP anymore...:/ CapWap is connected, got connection to DHCP server too...
@@butura55 hi, I checked mine. The first time that I ran, it worked properly, however, now I have the same problem too. I spent 2 hours on that, more or less, I guess the configurations are correct, and this problem is related to Packet Tracer. As you can see some options in WLC aren't accessible.
@@butura55 As a solution, I recommend to supercede the DHCP with a router. Then, run DHCP service on the router.
@@butura55 connect fa 0/1 of the CORE switch to the router, set 3 sub-interfaces on the router with ip addresses of each Vlan. Then run 3 different DHCP servers on the router for each Vlan. Finally, in the WLC, in the interfaces section, for each interface, in the " primary DHCP server " column just set the sub-interface ip address. Definitely it will work
can we config all of this without server? just make multilayerswitch to config vlan dhcp
I’ve never tried your question and probably yes. You can have a router and use it as a DHCP server. However, it depends on the size of the company, or number of the users (in the real world).
The idea was to show how you have and configure a DHCP server in Packet Tracer.
Okay thank you for your tutorial sir
@@mikhailkevin2505 Anytime 🙏🏻🙏🏻🙏🏻
I want to contact you for wlc ,please ,it is urgent
You can find me on LinkedIn
@@aminsedighfar I can't
Can I contact you on Instagram? I added you there. Please, it is urgent