IPV6 Routing path based on the source IPv6 on ASA

[ciscoKuzia]

Hello,

We have two ISPs.

ISP1 is assigning us with /56 prefix via DHCP6-PD and it's very flaky and changes all the time while ISP2 has provided us with /56 static. Our plan is to use the ISP1 prefix for clients that don't care about changed IP and assign static IPs from ISP2 for the servers. We successfully configured IPv6 from ISP1 via DHCP6PD and statically from ISP2 but we are having issues with routing. We want all of the statically signed IPs to go over ISP2 gateway and rest to go over ISP1.

Any idea how we can archive this? From my understanding, we need to configure PBR?

Btv, ASA is running version 9.14(3)18.

Any help would be appreciated.

[Georg Pauwen]

Hello,

PBR was my first thought also. The config would look something like below:

ipv6 access-list IPV6_ISP1_ACL permit tcp 2001:DB8:0300:0201::/56 any
ipv6 access-list IPV6_ISP2_ACL permit tcp 2001:DB8:0400:0301::/56 any
!
route-map IPV6_ISP1_RM permit 10
match ip address IPV6_ISP1_ACL
set ipv6 next-hop
or
set interface
!
route-map IPV6_ISP2_RM permit 10
match ip address IPV6_ISP2_ACL
set ipv6 next-hop
or
set interface
!
interface GigabitEthernet0/0
policy-route route-map IPV6_ISP1_RM
!
interface GigabitEthernet0/1
policy-route route-map IPV6_ISP2_RM

[ciscoKuzia]

Thanks @Georg Pauwen, let me try this and I'll let you know how it worked out.