[TriLUG] some TCP utilities ignore kernel routing table?

[Tanner Lovelace]

On 1/10/06, Brian Henning <brian at strutmasters.com> wrote:
> Hi Folks,
>    Just wondering if someone could shed some light on why it seems that
> some tcp utilities seem to ignore the kernel routing table.  For
> example:  (Sorry about the wrapping..)
>
> % /sbin/route -n
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use
> Iface
> 192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
> 192.168.10.0    192.168.1.125   255.255.255.0   UG    0      0        0 eth0
> 0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 eth0
>
> % telnet 192.168.10.4
> Trying 192.168.10.4...
> telnet: Unable to connect to remote host: No route to host
>
> Um.  Yes there is a route to the host.  Right there in the kernel
> routing table.  It says to go by way of .1.125.
>
> What gives?  I think this also affects the cups printing manager as it
> does nothing but report no printer at the specified address/port.

1. Have you actually verified that you can reach .1.125?
2. Try a traceroute to 192.168.10.4.
3. Try a ping to 192.168.10.4.

Report back.

Cheers,
Tanner
--
Tanner Lovelace
clubjuggler at gmail dot com
http://wtl.wayfarer.org/
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