01-13-2011 04:22 AM - edited 02-21-2020 04:13 AM
Hello.
I have NAC implemented in HA.
All used to work fine until I was unable to control the switches and also unable to access the CAM via VIP.
If i reboot both CAM then the VIP will "work" for 15 min (I am able to acces the VIP via HTTPS and also I am able to control the switchs via SNMP) but then it just stops working.
In a capture I notice that the response from the CAM to a syn is a packet with an ack and a reset. Also if I login (using real IP address) to the CAM via SSH I can telnet the VIP on port 443, so it seems that the service is up.
Anyone with ideas?
Best regards,
Joao
Solved! Go to Solution.
01-13-2011 06:39 AM
Hi,
That sounds like a mac table expire...
Can you check the switch where the CAM is connected if the mac address gets lost after those 15 mins?
When it stops "working", set up a sniffer trace on a PC and try to access the VIP. Can you chare the sniffer trace?
HTH,
Tiago
--
If this helps you and/or answers your question please mark the question as "answered" and/or rate it, so other users can easily find it.
01-13-2011 06:39 AM
Hi,
That sounds like a mac table expire...
Can you check the switch where the CAM is connected if the mac address gets lost after those 15 mins?
When it stops "working", set up a sniffer trace on a PC and try to access the VIP. Can you chare the sniffer trace?
HTH,
Tiago
--
If this helps you and/or answers your question please mark the question as "answered" and/or rate it, so other users can easily find it.
01-13-2011 11:08 AM
Hello Tiago.
I went to check issues with mac address and find out that there is a duplicated ip address. That was the reason to the strange behavior
Anyway your hint was helpfull.
Thanks,
Joao.
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