SDB:Mozilla and IPv6

Version: 9.0

Symptom

Mozilla freezes when you enter a URL.

Cause

By default, Mozilla uses IPv6 for the name resolution. However, if you use SuSEfirewall2, IPv6 is locked for security reasons. Thus, the request is ignored and times out after 60 seconds.

Solution

If you do not need IPv6 support, you can deactivate it completely.

In SUSE Linux 9.0, this can be done by changing the file /etc/modules.conf as follows:

Change

 alias net-pf-10 ipv6
 #alias net-pf-10           off
 

to

 #alias net-pf-10 ipv6
 alias net-pf-10           off
 

Alternatively, a new version of SuSEfirewall2 is available via the on-line update. This fixed version no longer locks the necessary packages on the local host.

SUSE Linux 9.1 (in connection with Kernel 2.6.x) includes the file /etc/modprobe.conf instead of /etc/modules.conf.

If you want to disable IPv6 on a permanent basis in SUSE Linux 9.1, change the file /etc/modprobe.conf as follows:

Change

  alias net-pf-10           ipv6

to

  alias net-pf-10           ipv6
  install ipv6              /bin/true

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