Re: Traceroute not working?

["Adam Deacon" <adam deaconsworld co uk>]

Hi Robert

Here's a trace from a test router behind the Linux box to both the internal
and external IP's of the Linux box.

pineapple#trace 192.168.1.1

Type escape sequence to abort.
Tracing the route to linux.deaconsworld.co.uk (192.168.1.1)

  1 linux.deaconsworld.co.uk (192.168.1.1) 0 msec 0 msec 0 msec
pineapple#trace 62.137.98.76

Type escape sequence to abort.
Tracing the route to modem-76.washington.dialup.pol.co.uk (62.137.98.76)

  1 modem-76.washington.dialup.pol.co.uk (62.137.98.76) 0 msec 4 msec 0 msec

Hope this helps.

Cheers

Adam


----- Original Message -----
From: Robert Canary <phantom ohiocounty net>
To: <redhat-list redhat com>
Sent: Friday, May 11, 2001 11:17 AM
Subject: Re: Traceroute not working?


> Hmmm, interesting.
>
> Can you show the results of traceroute from the box behind the Linux
> going to the Linux box?
>
> > Adam Deacon wrote:
> >
> > Hi
> >
> > I've got an odd problem with my traceroute. When I try and traceroute
> > from my Linux box it times out at the first hop, but if I traceroute
> > from a box behind Linux (it's masquerading), it works fine.
> >
> > From Linux...
> >
> > traceroute to resolver1.svr.pol.co.uk (195.92.195.94), 30 hops max, 38
> > byte packets
> >  1  * * *
> >  2  * * *
> > <snip>
> >
> >
> > From inside the network..
> >
> > Tracing the route to resolver1.svr.pol.co.uk (195.92.195.94)
> >
> >   1 Linux.deaconsworld.co.uk (192.168.1.1) 100 msec 0 msec 0 msec
> >   2 195.92.66.31 224 msec 124 msec 116 msec
> > <snip>
> >
> > I think it might have something to do with the routing,
> >
> > Kernel IP routing table
> > Destination     Gateway         Genmask         Flags Metric Ref
> > Use Iface
> > 195.92.66.31    0.0.0.0         255.255.255.255 UH    0      0
> > 0 ppp0
> > 192.168.1.0     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         195.92.66.31    0.0.0.0         UG    0      0
> > 0 ppp0
> >
> > but I can't the problem. Pings and other stuff is fine.
> >
> > Can any clever people out there think what's going on?
> >
> > Cheers
> >
> > Adam
>
> --
> robert canary
> system services
> OhioCounty.Net
> rwcanary ohiocounty net
> (270)298-9331 Office
> (270)298-7449 Fax
>
>
>
>