https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234207
--- Comment #5 from commit-h...@freebsd.org --- A commit references this bug: Author: ae Date: Fri Jan 18 09:54:29 UTC 2019 New revision: 343141 URL: https://svnweb.freebsd.org/changeset/base/343141 Log: MFC r342925: Relax requirement to packet size of CARP protocol and remove version check. CARP shares protocol number 112 with VRRP (RFC 5798). And the size of VRRP packet may be smaller than CARP. ipfw_chk() does m_pullup() to at least sizeof(struct carp_header) and can fail when packet is VRRP. This leads to packet drop and message about failed pullup attempt. Also, RFC 5798 defines version 3 of VRRP protocol, this version number also unsupported by CARP and such check leads to packet drop. carp_input() does its own checks for protocol version and packet size, so we can remove these checks to be able pass VRRP packets. PR: 234207 Changes: _U stable/12/ stable/12/sys/netpfil/ipfw/ip_fw2.c -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
