pppd on-demand wakes for no reason.

[Bill Somerville]

Alexander Dalloz wrote:
> Am Sa, den 20.11.2004 schrieb Bill Somerville um 2:12:
> 
> 
>>Thanks for that. Got to the bottom of this with logging on nameserver. 
>>It appears that ssh tries IPv6 as well as IPv4 and the AAAA lookup is 
>>being forwarded by our local nameserver, hence the wake up of pppd.
>>
>>I know that I can rebuild ssh so that it only tries IPv4. But is there 
>>an easy way of setting up the local nameserver so that it doesn't 
>>forward the AAAA lookup?
> 
> 
>>Bill Somerville
> 
> 
> Do you use IPv6? Maybe not. The only possibility to prevent IPv6 queries
> is to disable IPv6 on the participant hosts. You can do so by adding
> 
> install ipv6 /bin/true
> 
> to the /etc/modprobe.conf.
> 
> As an alternate
> 
> alias net-pf-10 off
> alias ipv6 off
> 
> are valid entries too. The quickest way would be a reboot to prevent the
> module loading, as unloading the ipv6 module is not that easy due to
> dependencies by other modules.

OK, thanks for the clarification. I didn't want to lose IPv6 (even 
though I hadn't enabled it so far!) so I added the IPv6 stuff to the 
nameserver and enabled dual stacks on all the machines.

It took a while to sort it all out and I wouldn't recommend it unless 
you have a need to use/test an IPv6 client or server. Still it's nearly 
all sysconfig parameter changes and it seems to work OK now including 
the auto 6to4 tunneling stuff at the gateway/router/firewall.

> 
> Alexander
> 
> 
> 

Bill Somerville