FRR BGP + AgentX SNMP support

yswery

I am using pFsense 2.5.0 which has FRR with SNMP support all built in:

Module information for bgpd:
Module Name  Version                   Description

libfrr       7.5                       libfrr core module
bgpd         7.5                       bgpd daemon
bgpd_snmp    7.5                       bgpd AgentX SNMP module
	from: /usr/local/lib/frr/modules/bgpd_snmp.so
pid: 19886

I have ticked the "Enable agentx support for accessing FRR Zebra data via SNMP with the net-snmp package." in the BGP section, and I have installed the net-snmp (instead of the default bsnmpd)

cat /var/etc/netsnmpd.conf | grep agentx
master agentx

However I dont seem to be having the peers show up on my librenms panel for the host.

Did anyone get this to work on their end?

amassi

@yswery Hello. I am very interesting by this topic too. I am making upgrade to have the same configuration in observium / pfsense. Do you have some new information for you ?

yswery

@amassi Actually I did get this working

Make sure you disable the default bsnmpd
Install net-snmp (package) and configure it instead
go Services -> SNMP (net-snmp) -> General -> Advance Options and in the advance option add agentxperms 777 777"
See post here: https://redmine.pfsense.org/issues/11610#note-5
In FRR, enable agentx in both global AND in BGP sections.

Restart things and confirm FRR is running all ok. to chck it works you can do:

snmpwalk -c COMMUNITYSTRING -v2c IP.IP.IP.IP BGP4-MIB::bgpPeerRemoteAs

NOTE: since FRR uses BGP4-MIB it means that ony IPv4 peers will show up. Have a look at the closed ticket here to implement a different MIB: https://github.com/FRRouting/frr/issues/2350

amassi

This post is deleted!

amassi

@yswery thank you for your help. Now its work well.

viktor_g

redmine issue: https://redmine.pfsense.org/issues/11610