09-03-2024 12:08 AM
Hi Community,
I am having the following situation now,
R1 -asr1001 having static default route to firewall
0.0.0.0/0---> 192.168.0.17
On R1 I configured following & I like to prefer the BGP path over above default route path.
#R1 Config
interface TenGigabitEthernet0/0/0.500 >> Directly connected interface
encapsulation dot1Q 500
ip address 10.50.120.2 255.255.255.0
standby 1 ip 10.50.120.1
standby 1 priority 105
end
#BGP config on R1
router bgp 394566
bgp log-neighbor-changes
address-family ipv4
redistribute connected >> redistributed connected SVI
exit-address-family
ip vrf 250
rd 200:25
import ipv4 unicast map VRF-Global-to-VRF-250 >> filtering
!
!
interface TenGigabitEthernet0/0/0
no ip address
cdp enable
!
interface TenGigabitEthernet0/0/0.250 >> used for bgp with FW2
description firewall
encapsulation dot1Q 250
ip vrf forwarding 250
ip address 169.254.0.10 255.255.255.248
!
router bgp 394566
!
address-family ipv4 vrf 250
neighbor 169.254.0.9 remote-as 397013
neighbor 169.254.0.9 local-as 4200000001 no-prepend
neighbor 169.254.0.9 description firewall
neighbor 169.254.0.9 activate
neighbor 169.254.0.9 soft-reconfiguration inbound
exit-address-family
!
ip route vrf 250 10.53.120.0 255.255.255.0 169.254.0.9 global >> Added this route in vrf 250
end
#Advertisment
I see the routes are in vrf 250
asr1001#sh ip ro vrf 250
B 10.50.120.0/24
is directly connected, 01:04:19, TenGigabitEthernet0/0/0.500
L 10.50.120.2/32 is directly connected, TenGigabitEthernet0/0/0.500
asr1001#show bgp vpnv4 unicast vrf 250 neighbors 169.254.0.9 advertised-routes
BGP table version is 53, local router ID is 10.254.0.3
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 200:25 (default for vrf 250)
Import Map: VRF-Global-to-VRF-250, Address-Family: IPv4 Unicast, Pfx Count/Limit: 1/1000
*> 10.50.120.0/24 0.0.0.0 0 32768 ?
Total number of prefixes 1
I like to prefer the FW2 ( bgp path) over the default route path to reach destination 10.53.120.0/24
What config I am required to add please?
Thank you ...Yuvi
Solved! Go to Solution.
09-04-2024 12:50 AM
On R2
asr1001#sh ip ro vrf 250 10.53.120.0 longer-prefixes
Routing Table: 250
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override
Gateway of last resort is not set
B 10.53.120.0/24 [20/0] via 169.254.0.9, 03:08:14