[mrtg] MRTG on a dialup server

[Henning]

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Hi all

I'm currently setting up MRTG on my linux dialup server and want it to 
monitor my ppp connection.

After finally getting snmp going, I've now run into an issue with cfgmaker.

lo and eth0 work perfectly, but ppp0 runs into a snag. For some reason, 
snmp is telling cfgmaker that the 155... IP below belongs to Interface 
21, when in fact it belongs to Interface 4 - ppp0.

--snpo: confcache private at localhost: Descr ppp0 --> 4
<snip>
_--snpo: confcache private at localhost: Ip 155.239.195.132 --> 21_
<snip>
--snpo: confcache private at localhost: Type 23 --> 4
<snip>
--snpo: confcache private at localhost: Eth  --> 4 (duplicate)
<bigsnip>
### Interface 4 >> Descr: 'ppp0' | Name: '' | Ip: '' | Eth: '' ###
### The following interface is commented out because:
### * has a speed of 0 which makes no sense
#
# Target[localhost_4]: 4:private at localhost:
# SetEnv[localhost_4]: MRTG_INT_IP="" MRTG_INT_DESCR="ppp0"
# MaxBytes[localhost_4]: 0
# Title[localhost_4]: Traffic Analysis for 4 -- hq
# PageTop[localhost_4]: <H1>Traffic Analysis for 4 -- hq</H1>
#  <TABLE>
#    <TR><TD>System:</TD>     <TD>hq in Home</TD></TR>
#    <TR><TD>Maintainer:</TD> <TD>Henning, hjb at base.za.net</TD></TR>
#    <TR><TD>Description:</TD><TD>ppp0  </TD></TR>
#    <TR><TD>ifType:</TD>     <TD>ppp (23)</TD></TR>
#    <TR><TD>ifName:</TD>     <TD></TD></TR>
#    <TR><TD>Max Speed:</TD>  <TD>0.0 Bytes/s</TD></TR>
#  </TABLE>


### Interface 21 >> Descr: '' | Name: '' | Ip: '155.239.195.132' | Eth: 
'' ###
### The following interface is commented out because:
### * has a speed of  which makes no sense
### * got 'Received SNMP response with error code
###       error status: noSuchName
###       index 1 (OID: 1.3.6.1.2.1.2.2.1.10.21)
###     SNMPv1_Session (remote host: "localhost" [127.0.0.1].161)
###                       community: "private"
###                      request ID: 1293164661
###                     PDU bufsize: 8000 bytes
###                         timeout: 2s
###                         retries: 5
###                         backoff: 1)' from interface when trying to query
#
# Target[localhost_21]: 21:private at localhost:
# SetEnv[localhost_21]: MRTG_INT_IP="155.239.195.132" MRTG_INT_DESCR=""
# MaxBytes[localhost_21]: 0
# Title[localhost_21]: Traffic Analysis for 21 -- hq
# PageTop[localhost_21]: <H1>Traffic Analysis for 21 -- hq</H1>
#  <TABLE>
#    <TR><TD>System:</TD>     <TD>hq in Home</TD></TR>
#    <TR><TD>Maintainer:</TD> <TD>Henning, hjb at base.za.net</TD></TR>
#    <TR><TD>Description:</TD><TD>  </TD></TR>
#    <TR><TD>ifType:</TD>     <TD> ()</TD></TR>
#    <TR><TD>ifName:</TD>     <TD></TD></TR>
#    <TR><TD>Max Speed:</TD>  <TD>0.0 Bytes/s</TD></TR>
#    <TR><TD>Ip:</TD>         <TD>155.239.195.132 
(nlys-ip-nas-1-p132.telkom-ipnet.co.za)</TD></TR>
#  </TABLE>

This is obviously not an mrtg issue as snmpwalk gives us the same thing:

IP-MIB::ipAdEntIfIndex.155.239.195.132 = INTEGER: 21

Even so, I'm hoping someone here can shed some light on this.

I'm including complete cfgmaker and snmpwalk logs as well as my 
snmpd.conf file in case anybody wants more info.

Oh, and if my snmp configuration is hopelessly insecure, please let me 
know how to improve it. :)

Thanks in advance,
Henning



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-- URL : http://www.ee.ethz.ch/~slist/p/snmpd.conf


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