Would Auto last hop feature work with multi vrf environment on F5
Hi Team, this is regarding auto last hop feature, If we have two vrf on upstream device(switch) and the traffic is coming on respective VIPs on F5 , we have auto last hop feature enabled on F5, then would the return traffic land on the respective vrfs on switch, from the VIPs ?
We have only one default route on F5 which is pointing towards the upstream switch and this IP is in global ( I mean the next hop IP is not in any VRF).
Do we need to do any work around for multi vrf return traffic?
Or the Auto last hop feature will take care automatically for the same ?
For example setup is like :-
Upstream switch:-
vlan 301
30.30.1.1/24
Vrf A
Vlan 101
IP:- 10.10.1.1/24
Vrf B
Vlan201
IP :- 20.20.1.1/24
F5 setup :-
VIP :- 10.10.1.5 --- ( pool members:- 1.1.1.5 and 1.1.1.6)
Servers gateway:- Floating self IP (1.1.1.1)
VIP :- 20.20.1.5--( pool members:- 1.1.1.12 and 1.1.1.13)
Servers gateway:- Floating self IP ( 1.1.1.1)
On F5, Default gateway is pointing towards IP 30.30.1.1 .
In this scenario auto last hop features will work or not ?
Or we need to do some work arounds for return traffic from F5 to upstream device ?
Kindly suggest . Thanks
In additon to what PSFletchTheTek wrote, Auto Last Hop only applies to traffic from clients towards the F5. For the traffic that goes from the F5 towards the pool members, the routing table is used. So, if I understand your network topology correctly this setup should work fine with Auto Last Hop enabled. The F5 will just return the packet towards the client to the same interface it came in at first.