buo2200
asked on
FlexConnect and WLC5508
Hello!
I'm trying to configure FlexConnect on my wlc 5508 and I'm having some troubles. The clients connected to the SSID with FlexConnect don't receive an IP from our DHCP (Windows 2008 R2).
Configuration on port connected to the AP running on FlexConnect. (switch 2960)
interface GigabitEthernet3/0/45
description to_AP_2B_Iberia_Port164Pan
switchport trunk native vlan 100
switchport trunk allowed vlan 20,22,100
switchport mode trunk
spanning-tree portfast
WLAN VLAN Mapping on WLC:
WLAN ID: 1
VLAN ID: 22
Native VLAN: 1
Of course.. helper-address is well configured pointing to the dhcp server.
Any thoughts? Thanks!
I'm trying to configure FlexConnect on my wlc 5508 and I'm having some troubles. The clients connected to the SSID with FlexConnect don't receive an IP from our DHCP (Windows 2008 R2).
Configuration on port connected to the AP running on FlexConnect. (switch 2960)
interface GigabitEthernet3/0/45
description to_AP_2B_Iberia_Port164Pan
switchport trunk native vlan 100
switchport trunk allowed vlan 20,22,100
switchport mode trunk
spanning-tree portfast
WLAN VLAN Mapping on WLC:
WLAN ID: 1
VLAN ID: 22
Native VLAN: 1
Of course.. helper-address is well configured pointing to the dhcp server.
Any thoughts? Thanks!
Craig Beck
Can the DHCP server ping the router IP on VLAN 22?
ASKER
Yes! It's reachable.
The thing is that I have another SSID (but without flexconnect) working on the same VLAN22, and it's working well. The problem is the SSID with flexconnect, the clients connected on it, don't receive any IP from dhcp. I checked the logs on the dhcp server and didn't found any trace.
The thing is that I have another SSID (but without flexconnect) working on the same VLAN22, and it's working well. The problem is the SSID with flexconnect, the clients connected on it, don't receive any IP from dhcp. I checked the logs on the dhcp server and didn't found any trace.
OK, can you give a client a static IP while connected to the FlexConnect SSID and try to ping the IP of the router?
The port config looks good for the AP. Is the WLC connected to the same switch as the AP? If not, could you show the show vlan brief output please from the switch where the AP connects, and the trunk link config?
The port config looks good for the AP. Is the WLC connected to the same switch as the AP? If not, could you show the show vlan brief output please from the switch where the AP connects, and the trunk link config?
ASKER
I gave an static IP while I connected to the flex SSID and the ping to the IP router was not working.
I don't think that the problem is on the trunk or swtich configuration... I believe is 100% flexconnect configuration.
If I connect to the same flexconnect SSID but through an AP where flexconnect is not configured, the SSID is working fine, it assigns me a valid IP (Vlan22).
I attach images showing my flexconnect configuration on the WLC,
WLAN_Config.png
Wireless_Config.png
wificontroller_ES.png
wificontroller_ES_2.png
I don't think that the problem is on the trunk or swtich configuration... I believe is 100% flexconnect configuration.
If I connect to the same flexconnect SSID but through an AP where flexconnect is not configured, the SSID is working fine, it assigns me a valid IP (Vlan22).
I attach images showing my flexconnect configuration on the WLC,
WLAN_Config.png
Wireless_Config.png
wificontroller_ES.png
wificontroller_ES_2.png
I don't think that the problem is on the trunk or swtich configuration... I believe is 100% flexconnect configuration.This is why I asked whether the AP is on the same switch as the WLC or not.
When you don't use FlexConnect all the traffic from the AP tunnels back to the WLC, so if the VLAN isn't on the switch where the AP connects it doesn't matter, if the WLC and AP are on different switches.
I need to know whether the AP and WLC are on different switches or not as the config you have at the WLC looks good to me. The only thing I'm curious about really is why you're telling the AP to use AP-specific FlexConnect config, instead of simply using the Group config?
ASKER
The AP is in a different switch as the wlc.
WLC is connected on a layer 3 cisco catalyst 4500 model.
AP is connected on a layer 2 cisco 2960 model.
I'm assuming that the AP takes the flexconnect config from the Group config. Where did you see that? I've checked again and everything seems to be correct.
Any thoughts? Do they have to be on the same switch?
WLC is connected on a layer 3 cisco catalyst 4500 model.
AP is connected on a layer 2 cisco 2960 model.
I'm assuming that the AP takes the flexconnect config from the Group config. Where did you see that? I've checked again and everything seems to be correct.
Any thoughts? Do they have to be on the same switch?
They don't have to be on the same switch.
Can I ask, why are you using FlexConnect?
Can I ask, why are you using FlexConnect?
ASKER
Sure!
I just have one WLC working in the office and wanted to avoid that all AP stop working if the WLC crashes someday.
And the second intention is to implement flexconnect in remote offices where there is no WLC present.
I just have one WLC working in the office and wanted to avoid that all AP stop working if the WLC crashes someday.
And the second intention is to implement flexconnect in remote offices where there is no WLC present.
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ASKER
Solved!! :)
The problem was that the command 'vlan 22' was not present on the switch L2.
Thank you for your support!!
The problem was that the command 'vlan 22' was not present on the switch L2.
Thank you for your support!!