LinuxQuestions.org - MRTG snmp network graph empty

Hello,

I installed MRTG some hours ago. Everything works fine (disk, cpu,..), except the network graph.
For this graph, it's only work for ~3 cycles (15min), then... nothing.

This is the part of mrtg.cfg:

Code:

### Interface 3 >> Descr: 'eth0' | Name: 'eth0' | Ip: 'localhost' | Eth: '00-1c-c0-c3-93-1b' ###

Options[127.0.0.1_3]: growright,nopercent,pngdate

Target[127.0.0.1_3]: 3:public@127.0.0.1:

SetEnv[127.0.0.1_3]: MRTG_INT_IP="127.0.0.1" MRTG_INT_DESCR="eth0"

MaxBytes[127.0.0.1_3]: 12500000

Title[127.0.0.1_3]: Traffic Analysis for eth0

XSize[127.0.0.1_3]: 550

YSize[127.0.0.1_3]: 150

PageTop[127.0.0.1_3]: <h1>Traffic Analysis for eth0</h1>

The number for eth0 is 3

Code:

r349xx:/etc/snmp# snmpwalk localhost -c public -v1 | grep IF-MIB::ifName

IF-MIB::ifName.1 = STRING: lo

IF-MIB::ifName.2 = STRING: dummy0

IF-MIB::ifName.3 = STRING: eth0

IF-MIB::ifName.4 = STRING: tunl0

IF-MIB::ifName.5 = STRING: gre0

SNMP is running:

Code:

r349xx:/home/mycado# ps aux | grep snmp 

snmp    20872  0.0  1.1  51808  5728 ?        S    14:19  0:01 /usr/sbin/snmpd -Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/snmpd.pid 127.0.0.1

Crontab is configured for mrtg (and seems it's not the problem because the other graphs works well):

Code:

r34976:/home/mycado# crontab -l

5 * * * * mrtg

In attachement is the graph for the memory (working!) and .. for the network, as you can see, only one small pic at the beginning.