[SOLVED] CARP announces fancy IP addresses



  • Hello,

    I use CARP with 2 pfsense boxes and my network provider tells me that my network ports announces fancy IP addresses.
    After opening a tcpdump in wireshark, I effectively found wrong addresses (see screenshot attached).

    In the GUI I never configured these adresses.

    Can someone tell me how to stop from announcing theses adresses ?

    Thanks you !
    ![Screen Shot 2013-05-29 at 5.01.27 PM.png](/public/imported_attachments/1/Screen Shot 2013-05-29 at 5.01.27 PM.png)
    ![Screen Shot 2013-05-29 at 5.01.27 PM.png_thumb](/public/imported_attachments/1/Screen Shot 2013-05-29 at 5.01.27 PM.png_thumb)



  • Somebody correct me if I'm wrong, but CARP uses the same protocol/multicast address(?) as VRRP, but the fields don't match, so those IPs aren't actually announced by CARP but VRRP interprets it that way (and the Wireshark dissector as well).



  • The Wireshark dissector is wrong, it doesn't understand CARP.



  • Ok, many thanks for your explanation.  :)


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