FRR (FRRouting)
Topology used for lab with FRR.
interface eth0
ip address 10.0.1.1/30
exit
!
interface eth2
ip address 10.1.1.1/24- Initial setup with the ASN a neighbor and remote-as
- Configure the 'network' to advertise statically in this example.
- Set soft-reconfiguration inbound
- MUST use route-maps to advertise and received routes
- prefix-lists used with route-maps, FRR allows for 'any' == 0.0.0.0/0 le 32
ip prefix-list pfx.bgp-out seq 5 permit 0.0.0.0/0 le 32
ip prefix-list pfx.bgp-in seq 5 permit any
route-map BGP-OUT permit 1
match ip address prefix-list pfx.bgp-out
route-map BGP-IN permit 1
match ip address prefix-list pfx.bgp-in
router bgp 65100
neighbor 10.0.1.2 remote-as 65200
address-family ipv4 unicast
network 10.1.1.0/24
neighbor 10.0.1.2 soft-reconfiguration inbound
neighbor 10.0.1.2 route-map BGP-IN in
neighbor 10.0.1.2 route-map BGP-OUT out- validation
frr# show bgp ipv4 unicast neighbors 10.0.1.2 received-routes
BGP table version is 4, local router ID is 10.1.1.1, vrf id 0
Default local pref 100, local AS 65100
Status codes: s suppressed, d damped, h history, * valid, > best, = multipath,
i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
*> 10.2.2.0/24 10.0.1.2 0 65200 i
Total number of prefixes 1