I am having an intermittent problem with clients not receiving DCHP assignments when connecting to a 1310 in non-root (with wireless clients) mode. The 1310 is associating with another 1310 in root mode (with wireless clients) via an infrastructure ssid. Clients are connecting via an ssid in guest mode. The root bridge is wired to a netvanta router which is acting as the DHCP server. Everything is working fine except when I associate with the non-root bridge I can only get an ip address after waiting several minutes. When I watch the debug logs on the nevtana DHCP I can see the request broadcasts come in and I can see that it is sending an offer, but the offer does not seem to make it's way back to the client. If I assign a manual IP address from our subnet to the client computer everything works fine and if I associate with the root bridge via a wireless client it works fine as well. At the moment there are no VLANs, no authentication and just the two SSIDs. Also, everything is on the same subnet. I feel like I've looked at everything, cleared arp caches and can't seem to find this pesky little bug. Any ideas? Thanks
Your problem may be related to your having two SSIDs and no VLANs. If using more than one SSID you should really have VLANs defined and attached to the SSIDs. Try removing one SSID and see if that improves matters.
If you need to use multiple SSIDs and VLANs the switch or whatever the bridges are connected to must also support VLANs and have them defined on it.
Thanks for the suggestion. I removed one of the SSIDs and still had the same problem. It's only on the non-root ap that I am having DHCP troubles. When connecting to the root AP everything works as expected. The thing that has me confused is that if I wait long enough I eventually do get a DHCP assignment when connecting throught the non-root AP. I don't understand what would cause most, but not all, of the broadcasts not to make it through. Once I have the IP address the connection works flawlessly.
In case it's useful here is the config from the root AP. The non-root is pretty much the same except the role is non-root bridge with wireless clients. I'm pretty new at this so there is the chance that I am doing something obviously wrong. Thanks again.
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec localtime show-timezone
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
Please feel ...
I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...