Wireless Access

Hello all,

I can't debug the packets sent on dhcp when the controller is the client.

I have the server in the same Lan but I cannot acces to it, I need to follow the process from the controller POV

Tried with:

packet-capture reset-pcap controlpath-pcap
 packet-capture destination local-filesystem
 packet-capture controlpath udp 67,68
show packet-capture controlpath-pcap

<no result with controller packets>

packet-capture reset-pcap datapath-pcap
packet-capture destination local-filesystem
packet-capture datapath mac <controller-mac> all

<no result at all>

packet-capture reset-pcap datapath-pcap
packet-capture destination local-filesystem
packet-capture datapath mac <dhcp-server-mac> all

<no result at all>

logging network subcat dhcp level debugging

<no really sure about this>

The dhcp debugging command you listed usually works for me.What are you trying to achieve? Have you tried running a pcap on the client as well?

Hello,

This commands work fine for me when the controller is the DHCP server.

But I have an vlan on the controller set as dhcp client and the controller dhcp packets (neither discover or request) are not shown on the controlpath nor the datapath

Hi Pedro,

I can recommend you try the logging options of the controller. In this case, a debug of the process fpapps (layer 2 and 3 control) may be help you with your problem.

#logging network process fpapps level debugging

#show logging level verbose
LOGGING LEVELS
--------------
Facility  Level     Sub Category  Process
--------  -----     ------------  -------
arm       warnings  N/A           N/A
network   debugging N/A           fpapps
security  warnings  N/A           N/A
system    warnings  N/A           N/A
user      warnings  N/A           N/A
wireless  warnings  N/A           N/A
#

You can obtain the logs with the next command (I recommend you play with "include" and "begin" options)

#show log all | include fpapps | include DHCP

When you finish, remember to disable it:

#no  logging network process fpapps
#show logging level verbose
LOGGING LEVELS
--------------
Facility  Level     Sub Category  Process
--------  -----     ------------  -------
arm       warnings  N/A           N/A
network   warnings  N/A           N/A
security  warnings  N/A           N/A
system    warnings  N/A           N/A
user      warnings  N/A           N/A
wireless  warnings  N/A           N/A
#

You can obtain more info in this link. :)

Wow this answer really worked for me, ipenido

Thank you very much!