CARP / VRRP questions



  • Hi all,

    I configured my pfsense to use CARP in Wan. I see a lot of VRRP protocol in my wireshark which I captured it from WAN. Also I saw some IPs which I did not configure it in my pfsense configuration. (Please refere to my attachment). Why my pfsense use this IP in  VRRP protocol. Please advise.

    Thanks.




  • Wireshark mis-identifies CARP traffic as VRRP (as it uses the same protocol number), and doesn't understand CARP. The decoding's just not right, those IPs aren't actually being used.



  • @cmb:

    Wireshark mis-identifies CARP traffic as VRRP (as it uses the same protocol number), and doesn't understand CARP. The decoding's just not right, those IPs aren't actually being used.

    Latest vesions of wireshark handle CARP just fine, but because both CARP and VRRP use the same protocol number, you have to tell wireshark that you want it to decode CARP packets instead.

    Simply select the packet, right click, and choose Decode As… then choose CARP in the list.

    This is working on Wireshark 1.12.7.

    --A.



  • @awebster:

    Latest vesions of wireshark handle CARP just fine, but because both CARP and VRRP use the same protocol number, you have to tell wireshark that you want it to decode CARP packets instead.

    Simply select the packet, right click, and choose Decode As… then choose CARP in the list.

    Thanks, I should have clarified that.



  • Hi all,

    Thank you very much for your information



  • Sorry,

    one more question. Can we set the time interval for CARP? I mean pfsense send the CARP  message to another pfsense.

    Please advise.


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