02-12-2022
08:45 AM
- last edited on
02-13-2022
04:57 PM
by
Translator
How can I detect if any device on lan segment is using router
proxy-arp
functionality? I need to turn it off but want to check first if any device has wrong mask or gtw and uses
proxy-arp
to get out of segment. Looks like only method is to monitor broadcast interface counter.
Solved! Go to Solution.
02-12-2022 09:59 AM
https://call155.wordpress.com/2012/08/17/catalyst-debug-proxy-arp/
Need debug for broadcast in router detect the cleint send arp request not to router ip and track this ip to find client use proxy arp for router.
02-12-2022 08:58 AM
In any client show arp table, if there are many entry for differnet ip with same mac address then this router have arp proxy and reply to any ip address that client request.
If you want test connect client to lan you want to detect dont config default gateway and make client ping to any ip.
02-12-2022 09:01 AM
i know but do not have access to client ... I need method to detect it on router
02-12-2022 09:19 AM
You want to detect arp proxy in router for interface in this router or interface in other router share same lan?
02-12-2022
09:23 AM
- last edited on
02-13-2022
04:58 PM
by
Translator
i want to detect what if any of PCs on LAN segment connected to my router is using my router
proxy-arp
functionality. Just want to anticipate if any device will stop working if I turn
proxy-arp
off.
02-12-2022
09:31 AM
- last edited on
02-13-2022
04:53 PM
by
Translator
Hello,
I don't think there is a way to remotely detect this. You would have to log into each L3 device and issue the command:
show ip interface
That should return a line such as:
Proxy ARP is enabled
02-12-2022 09:59 AM
https://call155.wordpress.com/2012/08/17/catalyst-debug-proxy-arp/
Need debug for broadcast in router detect the cleint send arp request not to router ip and track this ip to find client use proxy arp for router.
02-12-2022 10:07 AM - edited 02-12-2022 12:17 PM
will try this debug arp
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