Re: snmpwalk to remote address gives timeout

[Fabrice LORRAIN <debfab@free.fr>]

Bart wrote:
> Fabrice LORRAIN wrote:
> > Bart wrote:
> > > Fabrice LORRAIN schreef:
> > ...
> > > > > However if I run "snmpwalk -v 1 -c public 192.168.1.36 system" on the
> > > > > stable box, with 192.168.1.36 the IP address of the testing box, i get:
> > > > > Timeout: No Response from 192.168.1.36
> > > > >
> > > > > snmpd is up and running, I can ping both ways, there are no firewalls
> > > > > in place. What could be wrong?
> > > > Is snmpd listening on your interfaces ?
> > > >
> > > > Check with "sudo netstat -natup | grep 161" on the sarge box.
> > > >
> > > > @+,
> > > > 	Fab
> > > On Sarge I have:
> > > netstat -natup | grep 161
> > > udp        0      0 0.0.0.0:161             0.0.0.0:*
> > >        707/snmpd
> > > But Sarge is looking for snmp info on Etch. So for the fun of it, on
> > > Etch it is:
> > > netstat -natup | grep 161
> > > udp        0      0 127.0.0.1:161           0.0.0.0:*
> > >        1636/snmpd
> > snmpd is only binded to your localhost interface (127.0.0.1:161) on this
> > box. Check your conf. to have it listening on the 192.168.1.36 one.
> >
> > @+,
> > 	Fab
>
> Thanks for your tip. At first I couldn't find where the 127.0.0.1 was
> coming from on Etch, but after some digging around I found
> /etc/defaults/snmpd (I always forget this folder)
> SNMPDOPTS='-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/snmpd.pid
> 127.0.0.1' (this is SNMPDOPTS='-Lsd -Lf /dev/null -p
> /var/run/snmpd.pid' on sarge)
>
> I cut off the 127.0.0.1 bit, and it goes better now. Although no
> errors, I also get no output on Sarge from Etch:
> sarge:/# snmpwalk -v 1 -c public 192.168.1.36 system
> End of MIB
>
> So i tried something more specific on Etch:
> etch:/# snmpget -v 1 -c public localhost system.sysUpTime.0
> Error in packet
> Reason: (noSuchName) There is no such variable name in this MIB.
> Failed object: DISMAN-EVENT-MIB::sysUpTimeInstance
>
> Yet on Sarge I get:
> sarge:/# snmpget -v 1 -c public localhost system.sysUpTime.0
> SNMPv2-MIB::sysUpTime.0 = Timeticks: (3251425) 9:01:54.25
>
> Both sarge and etch have no specific (or default) snmp.conf, and should
> get (?) their MIBs from /usr/share/snmp/mibs/ which look similar on
> both hosts. Any ideas?

Not much. Bunch of things to try :
- check on both boxes the interface binding of snmpd (netstat -natup | 
grep 161).
- test with local interrogation on both box with snmpwalk first :
# snmpwalk -v 1 -c public localhost_or/and_local_ip .
"." means start from the root of the mib-tree (could use .1 also). You 
should get something. If not either you use the wrong community either 
your /etc/snmp/snmpd.conf is uterly broken --> fix it.
- test from the other box.

Sorry for not being more helpful, but I don't have any etch computer to 
test.

@+,
	Fab