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03-30-2012 04:01 PM
Hi
I have 4 interfaces;
eth1/1 = sub1 -> 10.10.1.1/24
eth1/2 = sub2 -> 10.10.2/1/24
eth1/3 = mpls -> 10.10.3/1/24
eth1/8 = wan -> x.y.z.w
default router on all interfaces
but now I need to route all 0.0.0.0/0 traffic from sub1 over the MPLS (10.10.3.10) and 0.0.0.0/0 on sub2 over the wan (x.y.z.w)
sub2 still needs access to sub1 and sub2 to sub1
Does it makes sense and how can I do this?
Thanks
03-30-2012 04:14 PM
I think you basically have 2 options:
1) Setup one VROUTER (not VSYS) for sub1 and another VROUTER for sub2.
VROUTER_sub1:
default route 0.0.0.0/0 nexthop 10.10.3.<whatever_ip_nexthop_is_on_mpls>
VROUTER_sub2:
default route 0.0.0.0/0 nexthop x.y.z.w
and then tell PA to route between the VROUTERS (I think I have seen a doc regarding this, not sure if VSYS is needed for this or not).
2) Or use PBF (Policy Based Forwarding) where you setup something like:
VROUTER_default:
default route 0.0.0.0/0 nexthop x.y.z.w
PBF_sub1
srczone: sub1
source address: 10.10.1.0/24 (or set to any)
source user: any
destination address: 10.10.3.<whatever_ip_nexthop_is_on_mpls>
action: forward (mpls_interface)
This way you have wan as default route except for stuff arriving at sub1 who will be forced into using the mpls interface as egress.
03-30-2012 04:21 PM
Thanks - let me try that, where do I find PBF?
03-30-2012 04:24 PM
The document I was refering to in 1) above was obviously the admin guide itself 🙂
This is what you would need to do:
VROUTER_sub1:
default route 0.0.0.0/0 nexthop 10.10.3.<whatever_ip_nexthop_is_on_mpls>
10.10.2.0/24 nexthop NEXTVR:VROUTER_sub2
VROUTER_sub2:
default route 0.0.0.0/0 nexthop x.y.z.w
10.10.1.0/24 nexthop NEXTVR:VROUTER_sub1
Check page 109-110 in the PA-4.1_Administrators_Guide.pdf for more information.
Regarding PBF you will find the info in the same admin guide as above but on page 141-143.
The PBF is found in Policies -> Policy Based Forwarding in the GUI.
03-30-2012 05:00 PM
Thanks I am trying the PBF, and it works for the 0.0.0.0/0 over the MPLS, but I can't get routing to sub2 (10.10.2.0) as it routed over the mpls - I will try another PBF above the 0.0.0.0
03-31-2012 04:27 PM
Thanks all, got it working with one PBF with destination as !LAN
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