For some strange reason, ipv6 is switched ON by default in SuSE Linux.
To check whether you are currently running ipv6, run the following command as root:
# ifconfig
eth0 Link encap:Ethernet HWaddr 00:0F:1F:89:8F:D5
inet addr:192.168.1.100 Bcast:140.171.243.255 Mask:255.255.254.0
inet6 addr: fe80::20f:1fff:fe89:8fd5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:33386388 errors:0 dropped:0 overruns:0 frame:0
TX packets:2947979 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2211978470 (2109.5 Mb) TX bytes:380978644 (363.3 Mb)
Base address:0xdf40 Memory:feae0000-feb00000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:895 errors:0 dropped:0 overruns:0 frame:0
TX packets:895 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:76527 (74.7 Kb) TX bytes:76527 (74.7 Kb)
If you have lines containing inet6 as above, then your machine IS running ipv6.
How to disbling ipv6 on SuSE Linux
To disable ipv6 completely, run the following commands as root:
Once your machine has rebooted, rerun the ifconfig command and verify that the inet6 lines have been removed. Now, Your machine is running without IPV6.
To check whether you are currently running ipv6, run the following command as root:
# ifconfig
eth0 Link encap:Ethernet HWaddr 00:0F:1F:89:8F:D5
inet addr:192.168.1.100 Bcast:140.171.243.255 Mask:255.255.254.0
inet6 addr: fe80::20f:1fff:fe89:8fd5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:33386388 errors:0 dropped:0 overruns:0 frame:0
TX packets:2947979 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2211978470 (2109.5 Mb) TX bytes:380978644 (363.3 Mb)
Base address:0xdf40 Memory:feae0000-feb00000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:895 errors:0 dropped:0 overruns:0 frame:0
TX packets:895 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:76527 (74.7 Kb) TX bytes:76527 (74.7 Kb)
If you have lines containing inet6 as above, then your machine IS running ipv6.
How to disbling ipv6 on SuSE Linux
To disable ipv6 completely, run the following commands as root:
# echo “alias net-pf-10 off” >> /etc/modprobe.conf.localRestart the machine.
# echo “alias ipv6 off” >> /etc/modprobe.conf.local
Once your machine has rebooted, rerun the ifconfig command and verify that the inet6 lines have been removed. Now, Your machine is running without IPV6.
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source:http://linuxpoison.blogspot.com/2008/08/13578175715350.html