<html><div>Hi</div>
<br>
<div>I realise this is more a router problem than an MRTG problem, but
hopefully someone has a clue on how to fix my problem.</div>
<br>
<div>I am currently monitoring traffic successfully on two of my routers.
(IBM 2210's)</div>
<br>
<div>I also wish to monitor traffic on a third ISDN router we have here,
which is an Ascend Pipeline 50.</div>
<br>
<div>I configured SNMP on the router, and confirmed it with "show
udp listen", which shows the following</div>
<br>
<div>************************************************************************************************</div>
<div>Socket Local Port InQLen</div>
<div><x-tab> </x-tab>*SNIP*</div>
<div>
3
161 0</div>
<div>
4
162 0</div>
<div>************************************************************************************************</div>
<br>
<div>which seems to say SNMP is listening patiently</div>
<br>
<div>but when I run mrtg on it, it says </div>
<div>************************************************************************************************</div>
<div>SNMP Error:</div>
<div>no response received</div>
<div>SNMPv1_Session (remote host: "203.my.router.ip"
[203.my.router.ip].161</div>
<div>
community: "public"</div>
<div>
request ID: 2070464597</div>
<div>
PDU bufsize: 8000 bytes</div>
<div>
timeout: 2s</div>
<div>
retries: 5</div>
<div>
backoff: 1)</div>
<div>SNMPGET Problem for ifInOctets.12 ifOutOctets.12 sysUptime sysName
ifDescr.12 on</div>
<div> public@203.my.router.ip</div>
<div>SNMPGET: Failed to reach target:
"12:public@203.my.router.ip". I tried multiple t</div>
<div>imes!</div>
<div>************************************************************************************************</div>
<br>
<div>Curious as to why, I ran an nmap udp scan on it, and it listed every
possible UDP port, and says that they are all listening.</div>
<br>
<div>************************************************************************************************</div>
<div>Starting nmap V. 2.2-BETA4 by Fyodor (fyodor@dhp.com,
<a href="http://www.insecure.org/nmap/" EUDORA=AUTOURL>www.insecure.org/nmap/</a>)</div>
<div>Interesting ports on (203.111.117.199):</div>
<div>Port State
Protocol Service</div>
<div>1
open
udp tcpmux</div>
<div>2
open
udp compressnet</div>
<div><x-tab> </x-tab><x-tab> </x-tab>*SNIP*</div>
<div>161
open
udp snmp</div>
<div>162
open
udp snmptrap</div>
<div><x-tab> </x-tab><x-tab> </x-tab>*SNIP*</div>
<div>10080 open
udp amanda</div>
<div>17007 open
udp isode-dua</div>
<div>18000 open
udp biimenu</div>
<div>31337 open
udp BackOrifice</div>
<div>47557 open
udp dbbrowse</div>
<div>************************************************************************************************</div>
<br>
<div>Which is obviously bogus. Last time I checked BackOrifice wouldn't
run on ascend routers :)</div>
<br>
<div>I can telnet and ping the router from the machine running mrtg, so
it aint a network type problem. I heard somewhere that UDP is an
unroutable protocol, which could cause this problem. But UDP not being
routable sounds like horseradish to me.</div>
<br>
<div>If anyone has any ideas please let me know. I have been working on
this for about a month now.</div>
<br>
Brock Henry
<br>
*************************************************************************<br>
Brock Henry - brockh@ozemail.com.au (H) - bhenry@shorelink.nsw.gov.au
(W)<br>
<br>
I asked for all
things, that I might enjoy life, <br>
I received life, that I might enjoy all things.<br>
*************************************************************************</html>