Bug 22715
| Summary: | IPv6 prefixlen problem | ||
|---|---|---|---|
| Product: | Base System | Reporter: | martti.kuparinen <martti.kuparinen> |
| Component: | conf | Assignee: | Hajimu UMEMOTO <ume> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | ||
| Priority: | Normal | ||
| Version: | Unspecified | ||
| Hardware: | Any | ||
| OS: | Any | ||
Responsible Changed From-To: freebsd-bugs->ume I'll take a look. State Changed From-To: open->closed It was a bug that ff02::/16 was wrongly replaced to fec0::/10 by my previous commit. I did backout this part. Thanks for your report. |
I have a problem with my FreeBSD 4.2-BETA hosts. One is configured as host and one as a router. The problem described below appeared after upgrading from 4.1.1-RELEASE to 4.2-BETA. PROBLEM ======= This appears on my console: Nov 9 13:29:51 ws140 /kernel: in6_ifadd: wrong prefixlen for de0(prefix=10 ifid=64) Nov 9 13:29:51 ws140 /kernel: prelist_update: failed to add a new address ROOT ws140:~> tcpdump icmp6 tcpdump: listening on de0 13:29:51.225298 fe80::210:5aff:fe69:df83 > ff02::1: icmp6: router advertisement This is from my host: ws140:~> ifconfig -a inet6 de0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 inet6 fe80::280:c8ff:fe4c:67b8%de0 prefixlen 64 scopeid 0x1 inet6 3ffe:xxx:x:3f01:280:c8ff:fe4c:67b8 prefixlen 64 gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280 ifconfig: gif0 has no inet6 interface address! lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3 inet6 ::1 prefixlen 128 And this is from the router: router:~> ifconfig -a inet6 xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 inet6 fe80::210:5aff:fe69:df83%xl0 prefixlen 64 scopeid 0x1 inet6 3ffe:xxx:x:3f01:210:5aff:fe69:df83 prefixlen 64 inet6 3ffe:xxx:x:3f01:: prefixlen 64 anycast inet6 3ffe:xxx:x:3f01::1 prefixlen 64 gif0: flags=8111<UP,POINTOPOINT,PROMISC,MULTICAST> mtu 1280 inet6 fe80::210:5aff:fe69:df83%gif0 --> :: prefixlen 64 scopeid 0x2 gif1: flags=8010<POINTOPOINT,MULTICAST> mtu 1280 ifconfig: gif1 has no inet6 interface address! gif2: flags=8010<POINTOPOINT,MULTICAST> mtu 1280 ifconfig: gif2 has no inet6 interface address! gif3: flags=8010<POINTOPOINT,MULTICAST> mtu 1280 ifconfig: gif3 has no inet6 interface address! lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x6 inet6 ::1 prefixlen 128 faith0: flags=8000<MULTICAST> mtu 1500 ifconfig: faith0 has no inet6 interface address! router:~> ps ax | grep -e route -e rtadvd 132 ?? Ss 0:00.48 /usr/sbin/route6d 134 ?? Ss 0:00.07 rtadvd xl0 router:~> grep ipv6 /etc/rc.conf ipv6_enable="YES" ipv6_gateway_enable="YES" ipv6_network_interfaces="xl0" ipv6_prefix_xl0="3ffe:xxx:x:3f01" ipv6_ifconfig_xl0="3ffe:xxx:x:3f01::1" ipv6_router_enable="YES" ipv6_router_flags="" ROOT router:~> killall -SIGUSR1 rtadvd ROOT router:~> cat /var/run/rtadvd.dump xl0: Status: UP Last RA sent: Thu Nov 9 13:49:16 2000 Next RA will be sent: Thu Nov 9 13:55:44 2000 waits: 0, initcount: 3 statistics: RA(out/in/inconsistent): 75/75/0, RS(input): 21 Link-layer address: 0:10:5a:69:df:83 MTU: 1500 DefaultLifetime: 1800, MaxAdvInterval: 600, MinAdvInterval: 200 Flags: MTU: 0 ReachableTime: 0, RetransTimer: 0, CurHopLimit: 64 Prefixes: !!! ==> fec0::/10(KERNEL, vltime: 2592000, pltime: 604800, flags: LA) 3ffe:200:8:3f01::/64(KERNEL, vltime: 2592000, pltime: 604800, flags: LA) REASON ====== Looks like this routing table entry is the reason: fec0::/10 link#1 UCS xl0 What am I doing wrong? Or is there an error in FreeBSD's rc.network6? There was a change (1.5.2.7 -> 1.5.2.8) which might be the reason...