IP address to interface mapping

Question

I need to add a ton of devices to DNS, and basically I want to get from a device all its IP'd interfaces.   This would be a lot faster if I could script it considering some core routers have up to 20 IP'd interfaces (vlan/interfaces/etc)

Since I use NPM to monitor and poll all the devices on the network.  Is there a way to get NPM to grab all the IP addresses configured on a device, as well as the interfaces and dump that in some sort of a useful table?

Or does anyone have or recommend a perl script that will snmp poll a device and pull any IP addresses configured (ifTable) and map it to its coordinating interface (ipAddrTable)

Device         - IP               - interfaceswitch1       - 10.4.2.217 - Vlan2 For example I have a layer2 switch with VLAN2 ip'd to: 10.4.2.217I think I can use the following commands to get the data I need, but I don't know how to sort it to to get:$ snmpwalk -v 2c -c public 10.4.2.217 RFC1213-MIB::ifIndexIF-MIB::ifIndex.1 = INTEGER: 1IF-MIB::ifIndex.2 = INTEGER: 2IF-MIB::ifIndex.10001 = INTEGER: 10001IF-MIB::ifIndex.10002 = INTEGER: 10002IF-MIB::ifIndex.10003 = INTEGER: 10003IF-MIB::ifIndex.10004 = INTEGER: 10004IF-MIB::ifIndex.10005 = INTEGER: 10005IF-MIB::ifIndex.10006 = INTEGER: 10006IF-MIB::ifIndex.10007 = INTEGER: 10007IF-MIB::ifIndex.10008 = INTEGER: 10008IF-MIB::ifIndex.10009 = INTEGER: 10009IF-MIB::ifIndex.10010 = INTEGER: 10010IF-MIB::ifIndex.10011 = INTEGER: 10011IF-MIB::ifIndex.10012 = INTEGER: 10012IF-MIB::ifIndex.10013 = INTEGER: 10013IF-MIB::ifIndex.10014 = INTEGER: 10014IF-MIB::ifIndex.10015 = INTEGER: 10015IF-MIB::ifIndex.10016 = INTEGER: 10016IF-MIB::ifIndex.10017 = INTEGER: 10017IF-MIB::ifIndex.10018 = INTEGER: 10018IF-MIB::ifIndex.10019 = INTEGER: 10019IF-MIB::ifIndex.10020 = INTEGER: 10020IF-MIB::ifIndex.10021 = INTEGER: 10021IF-MIB::ifIndex.10022 = INTEGER: 10022IF-MIB::ifIndex.10023 = INTEGER: 10023IF-MIB::ifIndex.10024 = INTEGER: 10024IF-MIB::ifIndex.10101 = INTEGER: 10101IF-MIB::ifIndex.10102 = INTEGER: 10102IF-MIB::ifIndex.10501 = INTEGER: 10501$ snmpwalk -v 2c -c public 10.4.2.217 RFC1213-MIB::ipAdEntIfIndexIP-MIB::ipAdEntIfIndex.10.4.2.217 = INTEGER: 2$ snmpwalk -v 2c -c public 1 10.4.2.217 IP-MIB::ipAdEntAddIP-MIB::ipAdEntAddr.10.4.2.217 = IpAddress: 10.4.2.217$ snmpwalk -v 2c -c public 10.4.2.217 RFC1213-MIB::ifDescrIF-MIB::ifDescr.1 = STRING: Vlan1IF-MIB::ifDescr.2 = STRING: Vlan2IF-MIB::ifDescr.10001 = STRING: FastEthernet0/1IF-MIB::ifDescr.10002 = STRING: FastEthernet0/2IF-MIB::ifDescr.10003 = STRING: FastEthernet0/3IF-MIB::ifDescr.10004 = STRING: FastEthernet0/4IF-MIB::ifDescr.10005 = STRING: FastEthernet0/5IF-MIB::ifDescr.10006 = STRING: FastEthernet0/6IF-MIB::ifDescr.10007 = STRING: FastEthernet0/7IF-MIB::ifDescr.10008 = STRING: FastEthernet0/8IF-MIB::ifDescr.10009 = STRING: FastEthernet0/9IF-MIB::ifDescr.10010 = STRING: FastEthernet0/10IF-MIB::ifDescr.10011 = STRING: FastEthernet0/11IF-MIB::ifDescr.10012 = STRING: FastEthernet0/12IF-MIB::ifDescr.10013 = STRING: FastEthernet0/13IF-MIB::ifDescr.10014 = STRING: FastEthernet0/14IF-MIB::ifDescr.10015 = STRING: FastEthernet0/15IF-MIB::ifDescr.10016 = STRING: FastEthernet0/16IF-MIB::ifDescr.10017 = STRING: FastEthernet0/17IF-MIB::ifDescr.10018 = STRING: FastEthernet0/18IF-MIB::ifDescr.10019 = STRING: FastEthernet0/19IF-MIB::ifDescr.10020 = STRING: FastEthernet0/20IF-MIB::ifDescr.10021 = STRING: FastEthernet0/21IF-MIB::ifDescr.10022 = STRING: FastEthernet0/22IF-MIB::ifDescr.10023 = STRING: FastEthernet0/23IF-MIB::ifDescr.10024 = STRING: FastEthernet0/24IF-MIB::ifDescr.10101 = STRING: GigabitEthernet0/1IF-MIB::ifDescr.10102 = STRING: GigabitEthernet0/2IF-MIB::ifDescr.10501 = STRING: Null0

Network_Guru · Answer

I use Kiwi Cattools to run a set of commands every morning and link to the "show-IP-commands-output.txt" in my Orion map.

Specifically, this one will give you the info you are after:

"show ip int brief | exc unass"

ecklerwr1 · Answer

Larry is right about this.  This is one area where I'm disappointed in NPM.  Why not show interface IP's on the node details page with the interfaces in NPM?  Seems like a no brainer.

njoylif · Answer

NPM does not do this currently, but NCM does :)
if this is a one time thing, eval NCM, then just output the info from the DB.
I've written SQL code to pull IPs/Subnets from NCM to NPM (interfaces table) into custom properties - see this thread:

good luck