Hello all, I'm running mrtg and monitoring various cisco routers. Lately I noticed in some of them empty graphs on many of their interfaces. After searching the logs I noticed errors like the following
$mrtg router.cfg 2011-01-31 13:24:01: WARNING: Can not determine ifNumber for public@router:::2::1 ref: 'Ip' key: '10.126.37.1' 2011-01-31 13:24:01: WARNING: Can not determine ifNumber for public@router:::2::1 ref: 'Ip' key: '10.83.235.253' 2011-01-31 13:24:01: WARNING: Can not determine ifNumber for public@router:::2::1 ref: 'Ip' key: '10.126.141.1' 2011-01-31 13:24:01: WARNING: Can not determine ifNumber for public@router:::2::1 ref: 'Ip' key: '10.135.0.13' 2011-01-31 13:24:01: WARNING: Can not determine ifNumber for public@router:::2::1 ref: 'Ip' key: '10.135.2.77' 2011-01-31 13:24:01: WARNING: Can not determine ifNumber for public@router:::2::1 ref: 'Ip' key: '172.17.3.117' 2011-01-31 13:24:01: WARNING: Can not determine ifNumber for public@router:::2::1 ref: 'Ip' key: '10.126.71.1' 2011-01-31 13:24:01: WARNING: Can not determine ifNumber for public@router:::2::1 ref: 'Ip' key: '10.126.64.1' 2011-01-31 13:24:01: WARNING: Can not determine ifNumber for public@router:::2::1 ref: 'Ip' key: '10.224.129.29' 2011-01-31 13:24:01: WARNING: Can not determine ifNumber for public@router:::2::1 ref: 'Ip' key: '10.248.11.9' 2011-01-31 13:24:01: WARNING: Can not determine ifNumber for public@router:::2::1 ref: 'Ip' key: '10.195.9.9' 2011-01-31 13:24:01: WARNING: Can not determine ifNumber for public@router:::2::1 ref: 'Ip' key: '10.248.10.249' The problem is not platform specific because it is noticed in routers like CRS-16/S, 7206VXR, 3845,C10008 etc on various IOS releases. The router is returning the right things at the snmp quiries so there is no problem with the snmp engines IP-MIB::ipAdEntIfIndex.10.83.235.253 = INTEGER: 264 IP-MIB::ipAdEntIfIndex.10.126.37.1 = INTEGER: 200 IP-MIB::ipAdEntIfIndex.10.126.64.1 = INTEGER: 207 IP-MIB::ipAdEntIfIndex.10.126.71.1 = INTEGER: 190 IP-MIB::ipAdEntIfIndex.10.126.141.1 = INTEGER: 182 IP-MIB::ipAdEntIfIndex.10.135.0.13 = INTEGER: 78 IP-MIB::ipAdEntIfIndex.10.195.9.9 = INTEGER: 258 IP-MIB::ipAdEntIfIndex.10.224.129.29 = INTEGER: 87 IP-MIB::ipAdEntIfIndex.10.248.10.249 = INTEGER: 229 IP-MIB::ipAdEntIfIndex.10.248.11.9 = INTEGER: 239 IP-MIB::ipAdEntIfIndex.172.17.3.117 = INTEGER: 146 IF-MIB::ifDescr.78 = STRING: Multilink1 IF-MIB::ifDescr.87 = STRING: Serial6/0.1/1/3/1:0 IF-MIB::ifDescr.146 = STRING: Serial1/2:17 IF-MIB::ifDescr.178 = STRING: E1 5/4 IF-MIB::ifDescr.182 = STRING: Serial6/0.1/3/6/2:4 IF-MIB::ifDescr.187 = STRING: Serial6/0.1/3/5/3:7 IF-MIB::ifDescr.190 = STRING: Serial6/0.1/3/6/1:8 IF-MIB::ifDescr.200 = STRING: Serial6/0.1/3/5/3:2 IF-MIB::ifDescr.207 = STRING: Serial6/0.1/3/6/1:2 IF-MIB::ifDescr.229 = STRING: Multilink12 IF-MIB::ifDescr.239 = STRING: Multilink17 IF-MIB::ifDescr.258 = STRING: Serial3/7:1 IF-MIB::ifDescr.264 = STRING: Serial6/0.1/1/1/2:25 IF-MIB::ifDescr.278 = STRING: Serial6/0.1/3/5/3:17 After searching I noticed that in the router.ok files there were duplicate entries about the ip-ifindex matching and the in the first set there is no ifindex number. When I delete the .ok file the graphs start again but after some time the problem starts again. This is the duplicate entries from the router.ok file public@router__1 Ip 10.126.141.1 public@router__1 Ip 10.126.37.1 public@router__1 Ip 10.126.64.1 public@router__1 Ip 10.126.71.1 public@router__1 Ip 10.135.0.13 public@router__1 Ip 10.195.9.9 public@router__1 Ip 10.224.129.29 public@router__1 Ip 10.248.10.249 public@router__1 Ip 10.248.11.9 public@router__1 Ip 10.83.235.253 public@router__1 Ip 172.17.3.117 public@router__2 Ip 10.126.141.1 182 public@router__2 Ip 10.126.37.1 200 public@router__2 Ip 10.126.64.1 207 public@router__2 Ip 10.126.71.1 190 public@router__2 Ip 10.135.0.13 78 public@router__2 Ip 10.195.9.9 258 public@router__2 Ip 10.224.129.29 87 public@router__2 Ip 10.248.10.249 229 public@router__2 Ip 10.248.11.9 239 public@router__2 Ip 10.83.235.253 264 public@router__2 Ip 172.17.3.117 146 Any Ideas about this?? Thanks in advance, Marinos -- ************************** Marinos Chondrogiannoglou Network Management Center OTE S.A. 99 Kifisias Av. Marousi GR-151 24 Athens, HELLAS PGP Key ID: 0x2EEFC190 ************************** _______________________________________________ mrtg mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/mrtg
