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:
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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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