[NTLUG:Discuss] Cannot ping from anywhere but the console

Chris Cox cjcox at acm.org
Fri Jun 8 18:14:37 CDT 2001


Here's some more info on the problem... the IP addresses have been changed
to protect....

Am I missing something obvious here??
To describe... the 10.166.8.152 and it's netmask are required to go
through DSL.  The 10.166.8.158 is the gateway which resides on the
DSL provider's end.  The 10.166.8.152 is the beginning of the netblock
for the local server (provided again by the DSL provider).

The local host IP is 10.166.8.156

Given the route table below... the local server can ping itself, and
addresses on the internet FROM THE CONSOLE.  If someone logs into the
local server via a telnet session (even as root)... ping just hangs...
it is NOT a DNS lookup issue (that is, you can't even ping IPs, ping -n
will hang too).  Nslookup seems to work too!  I did notice that doing
an ipchains -L took an incredibly long time to work.

System is running SuSE 7.1 (with a kernel I did not build).

Just FYI, disabling eth1 doesn't help.

Any thoughts,
Chris

root at router:/
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use If
10.166.8.152    0.0.0.0         255.255.255.248 U     0      0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 eth1
127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
0.0.0.0         10.166.8.158    0.0.0.0         UG    0      0        0 eth0
                                                                               

Jack Snodgrass wrote:
> 
> did you do
> ping -n
> to turn off reverse lookups. I've seen ping do weird stuff when it
> couldn't do a reverse name lookup. Just a guess.
> 
> jack
> 
> ----- Original Message -----
> From: "Chris Cox" <cjcox at acm.org>
> To: <discuss at ntlug.org>
> Sent: Friday, June 08, 2001 10:58 AM
> Subject: [NTLUG:Discuss] Cannot ping from anywhere but the console
> 
> > I was helping someone out with their setup and he had
> > me telnet into his box.  But even as root, I could
> > not ping anything on his network... it would just
> > hang until timeout.... yet he could ping everything
> > from the console.
> >
> > Does anyone know what causes this?
> >
> > Thanks,
> > Chris
> > _______________________________________________
> > http://www.ntlug.org/mailman/listinfo/discuss
> >
> 
> _______________________________________________
> http://www.ntlug.org/mailman/listinfo/discuss



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