[ILUG] ISDN routing problems

John J. Allen john.allen at online.ie
Mon Nov 12 20:54:29 GMT 2001


Niall O Broin wrote:

> I have set up a SuSE 7.2 box which will be using an ISDN card for net
> access. I want it to autodial but it's not playing i.e. it doesn't bring up
> the link when I ping an nuknown address, as it should. Yast2 sets the ISDN
> up with addresses of 192.168.0.99 and 192.168.0.1 (local and remote ends of
> the IPPP link) and sets a default route via 192.168.0.1. However, the ISDN
> connection uses dynamic IP so when it comes up it gets addresses like
> a.b.c.d and a.b.c.e to the routing doesn't work unless I delete the default
> route via 192.168.0.1 before the link comes up - then default routing gets
> set up correctly. 
> 
> This is all fine and dandy for manual dialling, but it doesn't work with
> dialmode auto. Then the only way to make the line come up automatically is
> to ping the remote end of the IPPP link viz. 192.168.0.1. Presumably if I'd
> left that as the default gateway pinging a remote address would bring up the
> link because it'd try to go via 192.168.0.1 but that would be useless
> because eventually the remote end of the IPPP link doesn't have that
> address. I've done this a number of times before, and it usually works fine,
> so WTF is going on here ?
> 
> 
> 
> 
> Niall
> 
> 

Ah Niall, ye canny have a default route setup. I always delete the 
default route when I start the ISDN subsystem, and then make sure that
the default route is set to the ippp0 interface. The delete, and add the
default route again in ip-down.local

-- 
John Allen                         email: john.allen at online.ie
OpenSource Developer                    :
                                      www: http://udk.sf.net
                                    phone: intl+353-14937616
                                         : intl+353-862315986





More information about the ILUG mailing list