topic Re: SNMP in Operating System - HP-UX

SNMP

Nobody's Hero — Tue, 20 Aug 2002 12:29:26 GMT

I am trying to send very simple snmpd commands from 'a' to 'b'. 'b' is on the other side of the firewall, however, our network group told me they opened port 161 for snmp. Still no response. Is there a command I can use to test port 161 on system 'b'?

Re: SNMP

harry d brown jr — Tue, 20 Aug 2002 12:31:34 GMT

yes, -->

telnet b 161

live free or die
harry

Re: SNMP

Sajid_1 — Tue, 20 Aug 2002 12:35:08 GMT

hello,

you can use 'lsof' on the remote system and see if the port is configured to accept requests.

hth

Re: SNMP

Jeff Schussele — Tue, 20 Aug 2002 12:38:25 GMT

Hi Robert,

Did the FW group open port 161 UDP?
SNMP uses UDP & not TCP, so have them doublecheck.
They'll also have to open 162/UDP for the traps.

HTH,
Jeff

Re: SNMP

Nobody's Hero — Tue, 20 Aug 2002 12:45:26 GMT

Harry,
I tried 'telnet b 161' on this 10.20 box and it returned 'b: Unknown Host'. Am I not understanding your command?

Re: SNMP

Nobody's Hero — Tue, 20 Aug 2002 12:48:40 GMT

I also noticed that the following sub agents are not running. When I try to start them, I get no error that I can see and it does not start.

/usr/sbin/hp_unixagt
/usr/sbin/mib2agt

the snmpd daemon is running though.

Re: SNMP

Jeff Schussele — Tue, 20 Aug 2002 12:49:31 GMT

Hi Robert,

Harry meant
telnet hostname_of_b 161
i.e. telnet to the host on port 161.

Rgds,
Jeff

Re: SNMP

Jeff Schussele — Tue, 20 Aug 2002 12:51:19 GMT

But on reflection telnet is a TCP function.
If it connects OK that's eveidence that the FW group opened 161/TCP & you need 161/UDP and 162/UDP.

Rgds,
Jeff

Re: SNMP

Nobody's Hero — Tue, 20 Aug 2002 12:53:53 GMT

Sorry harry, not enough coffee yet. I understand. My bag.

Re: SNMP

Sajid_1 — Tue, 20 Aug 2002 12:56:15 GMT

hello,

This will give you the explanation:
# man telnet

If you are not giving any telnet ports, it will try connecting to the default one. You can also check the /etc/services file and see if the port is defined there and which service is running.

Re: SNMP

Nobody's Hero — Tue, 20 Aug 2002 13:02:09 GMT

Tried,
'telnet ihshp2 161'
Returns:

'telnet ihshp2 161
Trying...
telnet: Unable to connect to remote host: Connection refused'

Re: SNMP

MANOJ SRIVASTAVA — Tue, 20 Aug 2002 13:23:33 GMT

Hi Robert

Can you do nslookup ihshp2 and see how the name is resolved , also you may try the nslookup IP adress , onc ethis get throght then you may be able to login or accces it using the port no.

Manoj Srivastava

Re: SNMP

Sajid_1 — Tue, 20 Aug 2002 13:27:36 GMT

This will be helpful:
http://support2.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000048605640

Doc ID - A5858520

Re: SNMP

harry d brown jr — Tue, 20 Aug 2002 13:53:31 GMT

Robert,

Yea, sorry about that, telnet isn't going to work here. try loading this:

http://hpux.cs.utah.edu/hppd/hpux/Networking/Admin/tricklet-1.4/

then test it with this on HOSTA:

echo "sysDescr" | /opt/tricklet/bin/snmp-get HOSTNAMEB

live free or die
harry

Re: SNMP

Nobody's Hero — Tue, 20 Aug 2002 14:32:48 GMT

Bingo, thanks Harry. Peerrrffeecctt.
Exactly what I was looking for. Could you srdf your knowledge. I need an upgrade.