Date: Fri, 04 Mar 2022 07:03:39 +0000 From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 262292] Seemingly not possible for IPv6 to function over tap devices on if_bridge Message-ID: <bug-262292-27103-eT3tfty6Qv@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-262292-27103@https.bugs.freebsd.org/bugzilla/> References: <bug-262292-27103@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D262292 --- Comment #2 from Paul Webster <paul.g.webster@googlemail.com> --- (In reply to Jason Tubnor from comment #1) I removed the alias, please see below for my test: I destroy bridge 102/104 as there not in use for the moment, so really to simplify things root@de1:/usr/home/paul.webster # ifconfig bridge102 destroy root@de1:/usr/home/paul.webster # ifconfig bridge104 destroy Then re-show the host bridge103: root@de1:/usr/home/paul.webster # ifconfig bridge103 bridge103: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mt= u 1500 ether 58:9c:fc:10:ff:f5 inet 192.168.103.1 netmask 0xffffff00 broadcast 192.168.103.255 inet6 fe80::5a9c:fcff:fe10:fff5%bridge103 prefixlen 64 scopeid 0x4 inet6 2a01:4f8:190:1183::103:1 prefixlen 64 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 member: tap1033 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> ifmaxaddr 0 port 9 priority 128 path cost 2000000 member: tap1032 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> ifmaxaddr 0 port 8 priority 128 path cost 2000000 member: tap1031 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> ifmaxaddr 0 port 11 priority 128 path cost 2000000 member: tap1030 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> ifmaxaddr 0 port 10 priority 128 path cost 2000000 groups: bridge nd6 options=3D63<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL,NO_RADR> Let's remove that ipv6 addr: root@de1:/usr/home/paul.webster # ifconfig bridge103 inet6 2a01:4f8:190:1183::103:1 -alias root@de1:/usr/home/paul.webster # ifconfig bridge103 bridge103: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mt= u 1500 ether 58:9c:fc:10:ff:f5 inet 192.168.103.1 netmask 0xffffff00 broadcast 192.168.103.255 inet6 fe80::5a9c:fcff:fe10:fff5%bridge103 prefixlen 64 scopeid 0x4 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 member: tap1033 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> ifmaxaddr 0 port 9 priority 128 path cost 2000000 member: tap1032 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> ifmaxaddr 0 port 8 priority 128 path cost 2000000 member: tap1031 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> ifmaxaddr 0 port 11 priority 128 path cost 2000000 member: tap1030 flags=3D143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> ifmaxaddr 0 port 10 priority 128 path cost 2000000 groups: bridge nd6 options=3D63<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL,NO_RADR> Ok dokey with that bit done lets repeat a test: >From the host: root@de1:~ # tcpdump -vvi bridge103 ip6 tcpdump: listening on bridge103, link-type EN10MB (Ethernet), capture size 262144 bytes 07:59:02.139781 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2a01:4f8:190:1183::103:2 > ff02::1:ff00:1: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::1 source link-address option (1), length 8 (1): 00:d3:4d:be:3f:ab 0x0000: 00d3 4dbe 3fab 07:59:03.195030 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2a01:4f8:190:1183::103:2 > ff02::1:ff00:1: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::1 source link-address option (1), length 8 (1): 00:d3:4d:be:3f:ab 0x0000: 00d3 4dbe 3fab 07:59:04.249361 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2a01:4f8:190:1183::103:2 > ff02::1:ff00:1: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::1 source link-address option (1), length 8 (1): 00:d3:4d:be:3f:ab 0x0000: 00d3 4dbe 3fab 07:59:05.369920 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2a01:4f8:190:1183::103:2 > ff02::1:ff00:1: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::1 source link-address option (1), length 8 (1): 00:d3:4d:be:3f:ab 0x0000: 00d3 4dbe 3fab >From the client: root@sitehost:~ # netstat -6rn Routing tables Internet6: Destination Gateway Flags N= etif Expire ::/96 ::1 UGRS = lo0 default fe80::1%vtnet0 UGS vt= net0 ::1 link#2 UHS = lo0 ::ffff:0.0.0.0/96 ::1 UGRS = lo0 2a01:4f8:190:1183::/64 link#1 U vt= net0 2a01:4f8:190:1183::103:2 link#1 UHS = lo0 fe80::/10 ::1 UGRS = lo0 fe80::%vtnet0/64 link#1 U vt= net0 fe80::2d3:4dff:febe:3fab%vtnet0 link#1 UHS = lo0 fe80::%lo0/64 link#2 U = lo0 fe80::1%lo0 link#2 UHS = lo0 ff02::/16 ::1 UGRS = lo0 root@sitehost:~ # ping6 ipv6.google.com PING6(56=3D40+8+8 bytes) 2a01:4f8:190:1183::103:2 --> 2a00:1450:4001:829::2= 00e ^C --- ipv6.l.google.com ping6 statistics --- 4 packets transmitted, 0 packets received, 100.0% packet loss --=20 You are receiving this mail because: You are the assignee for the bug.=
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