Date: Wed, 17 Jun 2026 11:48:01 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 296106] [carp] [vlan] [bridge] CARP IP not responding on top of bridge Message-ID: <bug-296106-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=296106 Bug ID: 296106 Summary: [carp] [vlan] [bridge] CARP IP not responding on top of bridge Product: Base System Version: 15.1-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: ea@uoga.net Trying to follow the way that is recommended (man bridge) to do host IP connectivity with bridge members, I create vlan on top of bridge and assign my IPs there, and I notice that normal IP works, but not CARP: Host A: (client) ifconfig vmx1 inet 192.168.20.1/24 Host B: (server with CARP) ifconfig bridge1 create ifconfig bridge1 addm vmx1 untagged 3400 ifconfig bridge1.3400 create # main IP ifconfig bridge1.3400 inet 192.168.20.2/24 # CARP IP ifconfig bridge1.3400 vhid 99 pass 123 alias 192.168.20.3/24 Host A connectivity with Host B main IP works, but not with CARP IP: hosta:~# ping 192.168.20.2 PING 192.168.20.2 (192.168.20.2): 56 data bytes 64 bytes from 192.168.20.2: icmp_seq=0 ttl=64 time=1.150 ms 64 bytes from 192.168.20.2: icmp_seq=1 ttl=64 time=2.384 ms ^C --- 192.168.20.2 ping statistics --- 2 packets transmitted, 2 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 1.150/1.767/2.384/0.617 ms hosta:~# ping 192.168.20.3 PING 192.168.20.3 (192.168.20.3): 56 data bytes ^C --- 192.168.20.3 ping statistics --- 2 packets transmitted, 0 packets received, 100.0% packet loss hosta:~# ifconfig vmx1: flags=1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500 options=4e403bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6,HWSTATS,MEXTPG> ether 00:50:56:a8:0b:e3 inet 192.168.20.1 netmask 0xffffff00 broadcast 192.168.20.255 media: Ethernet autoselect status: active nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> hostb:~# ifconfig vmx1: flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500 options=4e403bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6,HWSTATS,MEXTPG> ether 00:50:56:a8:55:0c media: Ethernet autoselect status: active nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> bridge1: flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500 options=10<VLAN_HWTAGGING> ether 58:9c:fc:10:d8:fc id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15 maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200 root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0 bridge flags=1<VLANFILTER> member: vmx1 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> port 2 priority 128 path cost 2000 vlan protocol 802.1q untagged 3400 groups: bridge nd6 options=9<PERFORMNUD,IFDISABLED> bridge1.3400: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1496 options=0 ether 58:9c:fc:10:d8:fc inet 192.168.20.2 netmask 0xffffff00 broadcast 192.168.20.255 inet 192.168.20.3 netmask 0xffffff00 broadcast 192.168.20.255 vhid 99 groups: vlan carp: MASTER vhid 99 advbase 1 advskew 0 peer 224.0.0.18 peer6 ff02::12 vlan: 3400 vlanproto: 802.1q vlanpcp: 0 parent interface: bridge1 nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> Is CARP supposed to work when on top of bridge ? -- You are receiving this mail because: You are the assignee for the bug.home | help
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