CentOSを5.2から5.4にアップしたらbondingインターフェースでのIPV6を無効化が効かなくなっていた!
[root@cent54 ~]# ifconfig bond0 bond0 Link encap:Ethernet HWaddr 00:0C:29:2B:3F:BC inet addr:192.168.244.132 Bcast:192.168.244.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe2b:3fbc/64 Scope:Link UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
[root@cent54 ~]# grep dummy /var/log/access_log ::1 - - [14/Oct/2010:11:40:03 +0900] "OPTIONS * HTTP/1.0" 200 2201 "-" "Apache (internal dummy connection)" [root@cent54 ~]# netstat -an ... tcp 0 0 ::ffff:192.168.0.1:80 ::ffff:172.16.0.1:26277 TIME_WAIT ... tcp 0 0 192.168.0.1:47110 192.168.0.2:3306 TIME_WAIT ...
設定が足りなかったらしい
1.110.9.9. Network Driver Updates
In this update the bonding driver has been updated to the latest upstream version. This update, however has introduced symbol/ipv6 module dependency capabilities. Therefore, if bonding has been previously disabled (by inserting the install ipv6 /bin/false line in the /etc/modprobe.conf file) this upgrade to the bonding driver will result in the bonding kernel module failing to load. The install ipv6 /bin/false line needs to be replaced with install ipv6 disable=1 for the module to load properly. (BZ#462632)
なんだかよくわからないけど/etc/modprobe.confの記載が足りないらしい
[root@cent54 ~]# cat /etc/sysconfig/network NETWORKING=yes NETWORKING_IPV6=no HOSTNAME=cent54 [root@cent54 ~]# cat /etc/modprobe.conf .. alias net-pf-10 off alias ipv6 off options ipv6 disable=1 ### これがいるっぽい ..
消えた
[root@cent54 ~]# ifconfig bond0 bond0 Link encap:Ethernet HWaddr 00:0C:29:2B:3F:BC inet addr:192.168.244.132 Bcast:192.168.244.255 Mask:255.255.255.0 UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1