>From my NMS host (176.27.81.18) I can do a walk on the master (snmpwalk
-v2c -d -c 'community string' 176.27.81.145 iftable), but I want to
verify that it is actually serving up data from the sub-agent. If I do
a tcpdump on the sub-agent's interface while I am running this snmpwalk
command I do not see any packets traverse port 705. I am under the
assumption that if this is working correctly, and I am pulling snmp data
from the master, I am actually getting data from the sub-agent, in which
case I should see data packets from the sub-agent. I am a newbie
(obviously :-)) so I hope this clears things up. Below is some info
from my hosts.
Thanks for your help.
Master Agent:
OS - Fedora Core 2
Kernel - 2.6.10
NetSNMP - 5.2.1
ps -ef | grep snmpd
root 22671 1 0 14:51 ? 00:00:01 /usr/sbin/snmpd -x
10.222.1.1:705
cat /etc/snmp/snmpd.conf | grep master
master agentx
netstat -an | grep :705
tcp 0 0 10.222.1.1:705 0.0.0.0:*
LISTEN
tcp 0 0 10.222.1.1:705 10.222.2.3:55684
ESTABLISHED
tcp 0 0 10.222.1.1:705 10.222.2.4:57562
ESTABLISHED
netstat -an | grep :161
udp 0 0 0.0.0.0:161 0.0.0.0:*
eth0 inet addr: 176.27.81.145 Bcast:176.27.81.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:709496 errors:0 dropped:0 overruns:0 frame:0
TX packets:142438 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:67707916 (64.5 Mb) TX bytes:54483760 (51.9 Mb)
eth2 inet addr:10.222.1.1 Bcast:10.222.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:474906 errors:0 dropped:0 overruns:0 frame:0
TX packets:683522 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:37691579 (35.9 Mb) TX bytes:888492164 (847.3 Mb)
Debug output for agentx:
agentx/master: handle pdu (req=0x45b197f,trans=0x0,sess=0xb)
agentx/master: send response, stat 0 (req=0x45b197f,trans=0x0,sess=0xb)
agentx_build: packet built okay
Sub-Agent:
OS - Gentoo
Kernel - 2.6.15
Net-SNMP - 5.2.1.2
ps -ef | grep snmpd
323 root 2764 S /sbin/snmpd -f -X -x 10.222.1.1:705 -Lsd -c
/etc/snmp
eth0 inet addr:10.222.2.4 Bcast:10.222.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:22027 errors:0 dropped:0 overruns:0 frame:0
TX packets:12075 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:31769843 (30.2 MiB) TX bytes:924256 (902.5 KiB)
Base address:0xdcc0 Memory:fe6e0000-fe700000
Debug output for agentx:
agentx_build: packet built okay
agentx/subagent: synching input, op 0x01
agentx/subagent: session 0x9d185d0 responded to ping
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Dave Shield
Sent: Monday, February 05, 2007 4:03 PM
To: Lacatena, Andrew
Cc: [email protected]
Subject: Re: FW: agentx sub-agent setup
On 05/02/07, Lacatena, Andrew <[EMAIL PROTECTED]> wrote:
> Now that this is setup and running, I am unable to do a snmpwalk on
the
> sub-agent. When I run, snmpwalk -v2c -c 'community string' 'hostname'
> iftable against my sub-agent I do not get any output. Doing it
against
> a host that isn't configured as a sub-agent, I get the expected
output.
Can you confirm exactly what you're trying here?
You wouldn't normally contact an AgentX subagent directly.
Instead you'd contact the master agent, which would pass
the requests on to the appropriate subagent(s).
It's not totally clear whether that's what you are doing or not.
Dave
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