Robert,
Can you do a snmpget (or snmpwalk) from the new MRTG machine to the IBMs? If
not the first thing to check is the SNMP configuration on the AS400 machines.
Maybe they are set only to answer to specific addresses.
HTH,
Jan.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Mersberger, Robert
Sent: Monday, January 29, 2007 3:32 PM
To: Ed LaFrance; [email protected]
Subject: Re: [mrtg] Problem with cfgmaker after moving mrtg server to
newsubnet.
I can ping the device fine.
_____
From: Ed LaFrance [mailto:[EMAIL PROTECTED]
Sent: Saturday, January 27, 2007 11:28 AM
To: Mersberger, Robert; [email protected]
Subject: Re: [mrtg] Problem with cfgmaker after moving mrtg server to
new subnet.
Can you even ping the target from the new origin? This sounds like a
networking issue that is affecting MRTG and has nothing to do with MRTG
specifically.
Ed
At 01:52 PM 1/26/2007, Mersberger, Robert wrote:
Content-Class: urn:content-classes:message
Content-Type: multipart/alternative;
boundary="----_=_NextPart_001_01C74194.4D821F75"
Content-Transfer-Encoding: 7bit
I have 2 AS400 servers on 172.20.x.x/24 and 172.24.X X/24
subnets that I have been tracking with mrtg with the server on a 172.18.x.x/24
subnet . Recently we upgraded to the latest release of Mrtg and it was
installed on a new subnet 172.31.16.x/22 and these two as400 servers stop
communicating with mrtg and cfgmaker. This is the error message that I get.
? Is used to hide the real subnet
SNMP Error:
no response received
SNMPv1_Session (remote host: "172.20.?.11" [172.20.?.11].161)
community: "public"
request ID: 614628054
PDU bufsize: 8000 bytes
timeout: 2s
retries: 5
backoff: 1)
at /usr/bin/../lib/mrtg2/SNMP_util.pm line 490
SNMPGET Problem for ifInOctets.2 ifOutOctets.2 on [EMAIL
PROTECTED]:::::1:v4only
at /usr/bin/mrtg line 2035
Thursday, 25 January 2007 at 17:00: WARNING: skipping because
at least the query for ifInOctets.2 on 172.20.?.11 did not succeed
Thursday, 25 January 2007 at 17:00: WARNING: no data for
ifInOctets&ifOutOctets:[EMAIL PROTECTED] Skipping further queries for Ho
st 172.20.?.11 in this round.
I have done sniffer traces on this activity and what I see
looks like no response from server. In the trace I see
Snmp request
Snmp response
ICMP destination unreachable.
I have verified the community string and know that I can do an
snmpwalk from servers on other subnets.
I also check with the server owner and had him verify that snmp
on these servers were not setup to not allow access from this subnet. I have
other devices on this 172.24 and 172.20 subnet that are not causing problems
only these two IBM servers.
Hope you can straighten be out.
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