strange ipv6 messages after disablling in kernel

While trying to troubleshoot some problems with my ipw2200 wireless card
I noticed that my machine is always broadcasting "ipv6 router
solicitation" requests. One machine I had before would always try to do
an ipv6 name resolution before doing an ipv4 resolution. I "fixed" it
by disabling ipv6 in my kernel. I attempted to do that in this present
case, but now I keep getting these messages in /var/log/messages:

Jul 17 10:14:00 aa kernel: ipv6: Unknown symbol secure_tcpv6_sequence_number
Jul 17 10:14:00 aa kernel: ipv6: Unknown symbol ipv6_skip_exthdr
Jul 17 10:14:00 aa kernel: ipv6: Unknown symbol ipv6_ext_hdr

Any idea where these are coming from, what problems this might indicate,
and how I can turn it off?

AA wrote:

> While trying to troubleshoot some problems with my ipw2200 wireless card
> I noticed that my machine is always broadcasting "ipv6 router
> solicitation" requests. One machine I had before would always try to do
> an ipv6 name resolution before doing an ipv4 resolution. I "fixed" it
> by disabling ipv6 in my kernel. I attempted to do that in this present
> case, but now I keep getting these messages in /var/log/messages:
>
> Jul 17 10:14:00 aa kernel: ipv6: Unknown symbol
> secure_tcpv6_sequence_number Jul 17 10:14:00 aa kernel: ipv6: Unknown
> symbol ipv6_skip_exthdr Jul 17 10:14:00 aa kernel: ipv6: Unknown symbol
> ipv6_ext_hdr
>
> Any idea where these are coming from, what problems this might indicate,
> and how I can turn it off?

What exactly do you mean by "disabling" ipv6 in the kernel?

You could remove the ipv6 module from /lib/modules/<version>/ .
Or you could add "IPV6INIT=no" to /etc/sysconfig/network-scripts/ifcfg-eth0
(assuming you are using eth0).
Or you could compile a kernel without ipv6.

--
Timothy Murphy
e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

Timothy Murphy wrote:
> AA wrote:
>
>
>>While trying to troubleshoot some problems with my ipw2200 wireless card
>>I noticed that my machine is always broadcasting "ipv6 router
>>solicitation" requests. One machine I had before would always try to do
>>an ipv6 name resolution before doing an ipv4 resolution. I "fixed" it
>>by disabling ipv6 in my kernel. I attempted to do that in this present
>>case, but now I keep getting these messages in /var/log/messages:
>>
>>Jul 17 10:14:00 aa kernel: ipv6: Unknown symbol
>>secure_tcpv6_sequence_number Jul 17 10:14:00 aa kernel: ipv6: Unknown
>>symbol ipv6_skip_exthdr Jul 17 10:14:00 aa kernel: ipv6: Unknown symbol
>>ipv6_ext_hdr
>>
>>Any idea where these are coming from, what problems this might indicate,
>>and how I can turn it off?
>
>
> What exactly do you mean by "disabling" ipv6 in the kernel?
>
> You could remove the ipv6 module from /lib/modules/<version>/ .
> Or you could add "IPV6INIT=no" to /etc/sysconfig/network-scripts/ifcfg-eth0
> (assuming you are using eth0).
> Or you could compile a kernel without ipv6.
>
compiling the kernel with the feature turned off.

I like the looks of your second option there, and will try it.

Thx