Hello List,
I am posting this to the devel list as suggested. I fancy having a go at fixing this myself. My first thought was to model the fix on the same way the VlanTable is populated and change the OID based on the ClassName of the device. The problem with this approach is that different Cisco IOS loads will use different OIDs so there is no 1 correct OID that will work for all Cisco routers. Either I need to have a new configuration parameter to tell me which OID to use to get the routing info or I need to check the IOS version and have some sort of lookup table to try to figure it out. Any suggestions would be appreciated. Thanks AlanE ------------------------------------------------ I was wondering if anyone else has come across this problem and if there was a known solution. According to the Linkd wiki http://www.opennms.org/wiki/Linkd one of the first things Linkd does is walk the ipRouteTable. However I have a Cisco Router (7604) which doesn't have an ipRouteTable. Apparently this has been removed by Cisco and I am now supposed to use the ipCidrRouteTable in the IP-FORWARD-MIB. In fact even has been deprecated in the latest Cisco IOS and we should now use inetCidrRouteTable. If I try snmpwalk. I can confirm that on my router ipRouteTable doesn't work but the ipCidrRouteTable does work. [r...@nms daemon]# snmpwalk -t5 -r5 -v2c -c public ks1-trial-lbr .1.3.6.1.2.1.4.21 RFC1213-MIB::ipRouteTable = No Such Object available on this agent at this OID [r...@nms daemon]# [r...@nms daemon]# snmpwalk -t5 -r5 -v2c -c public ks1-trial-lbr IP-FORWARD-MIB::ipCidrRouteTable IP-FORWARD-MIB::ipCidrRouteDest.0.0.0.0.0.0.0.0.0.10.101.24.9 = IpAddress: 0.0.0.0 IP-FORWARD-MIB::ipCidrRouteDest.10.101.24.0.255.255.255.0.0.0.0.0.0 = IpAddress: 10.101.24.0 IP-FORWARD-MIB::ipCidrRouteDest.10.101.24.4.255.255.255.255.0.0.0.0.0 = IpAddress: 10.101.24.4 IP-FORWARD-MIB::ipCidrRouteDest.10.101.30.0.255.255.255.0.0.0.0.0.0 = IpAddress: 10.101.30.0 <snip> The problem I have is that the "Physical Interface" tab on the node view is blank and the "Node Links" table has no information. I have another router with an older IOS running and this works just fine. I can walk the ipRouteTable and the "Physical Interfaces" display correctly. I am using opennms version: 1.7.10 Any suggestions would be appreciated. Thanks AlanE ------------------------------------------ From: Alan Evans Sent: Tuesday, May 18, 2010 8:35 PM To: 'opennms-disc...@lists.sourceforge.net' Subject: RE: [opennms-discuss] Problem with Linkd and Cisco Router : No ipRouteTable in MIB So I took a look at the source code and it appears that I am out of luck. I can see in opennms/opennms-services/src/main/java/org/opennms/netmgt/linkd/snmp/IpR outeTableEntry.java The ipRouteTable OID is hardcoded and there doesn't appear to be any other options available. I've searched bugzilla and there doesn't seem to be a bug report for this issue which seems a bit odd, I'm sure I'm not the only one managing Cisco Routers that have no ipRouteTable. Anyway, I will raise a bug report as soon as I receive my randomly assigned password to login to bugzilla. Cheers AlanE
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