[plug] slhc

[John Summerfield]

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> I think my inability to establish a ppp link is a routing problem,
> although why it applies to one ISP and not the others I'm not sure...
> I can now ping the other end of the link now but no further.  The ppp
> log shows nothing instructive.  The routing table comes up like this:
> 
> Destination     Gateway         Genmask         Flags Metric Ref  Use
> Iface
> 202.139.13.245  0.0.0.0         255.255.255.255 UH    0      0      0
> ppp0
> 203.25.143.101  0.0.0.0         255.255.255.255 UH    0      0      0
> eth0
> 203.25.143.130  0.0.0.0         255.255.255.255 UH    0      0      0
> eth0
> 127.0.0.1       0.0.0.0         255.255.255.255 UH    0      0      0
> lo
> 203.25.143.0    0.0.0.0         255.255.255.0   U     0      0      0
> eth0
> 0.0.0.0         202.139.13.245  0.0.0.0         UG    0      0      0
> ppp0

Looks suitably like mine, assuming that 202.139.13.245 is your IAP's 
modem, not yours. Here's a snipped from mine for comparison.

203.55.31.37    0.0.0.0         255.255.255.255 UH    0      0        0 
ppp0
 <snip>
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 
eth1
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 
eth0
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 
eth0
127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
0.0.0.0         203.55.31.37    0.0.0.0         UG    0      0        0 
ppp0

Some of the netmasks on your lo and eth0 interfaces seem odd to me; all 
ones is appropriate for a point-to-point link; mine are correct for class 
C and class A networks. I don't think that's the problem though.


> Don't worry about the 203.25.143.* stuff, that is expected (and
> shouldn't be causing problems anyway AFAIK).  Otherwise, I can't see
> anything wrong with the above.  However when I do a traceroute I get
> this warning:
> 
> [root at wotan network-scripts]# traceroute 203.11.114.1
> traceroute: Warning: Multiple interfaces found; using 203.25.143.130 @
> eth0
> 
> Why on earth is it using eth0 to try to reach 203.11.114.1?  Any ideas
> on what might be wrong?

traceroute chooses an interface; just what the algorithm is I don't know 
(speed, order defined, ??), but it doesn't seem to hit on ppp0. However, 
you can override it; read the man page.



> Many thanks!
> 
> - -- 
> JEREMY MALCOLM Jeremy at Malcolm.wattle.id.au http://malcolm.wattle.id.au
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> 
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-- 
Cheers
John Summerfield
http://os2.ami.com.au/os2/ for OS/2 support.
Configuration, networking, combined IBM ftpsites index.