2 metro ethernet 3 gigabit port (gateway problem)

linksanguinario · ‎10-16-2015

hi..

OK i have this router 3945, 2 metro Ethernets , and only 3 gigabit ports.

Metro 1:

Vlan:aa

wan:A.A.A.A/30

wan-pool:a.a.a.a/29

Metro 2:

vlan:bb

wan: B.B.B.B/30

wan-pool b.b.b.b/29

interface GigabitEthernet0/0.aa
description Metro-1
encapsulation dot1Q aa
ip address A.A.A.2. 255.255.255.252
!
interface GigabitEthernet0/1.bb
description Metro-2
encapsulation dot1Q bb
ip address B.B.B.2 255.255.255.252
!
interface GigabitEthernet0/2
ip address a.a.a.1 255.255.255.248
ip address b.b.b.1 255.255.255.248 secondary
duplex auto
speed auto
!

WAN1-------

router 3945 ------- LAN-Wan

WAN2-------

My problem is how set all traffic (0.0.0.0) coming from a.a.a.x (lan-wan-Metro1) go to A.A.A.1(ip of isp) AND

b.b.b.x(lan-wan-Metro2) go to B.B.B.1(ip of isp)

I try with route-map... but something is wrong, cause i can ping from a.a.a.x to a.a.a.1 but i cant ping 8.8.8.8 or any other wan ip...

Really appreciate all your help

Jon Marshall · ‎10-16-2015

Shouldn't the subnet masks on the subinterfaces be 255.255.255.252 ?

Assuming they are what did your PBR configuration look like ?

Jon

linksanguinario · ‎10-16-2015

yes, sorry my mistake, already edit the post... that is not the problem

Jon Marshall · ‎10-16-2015

I didn't think it was just wanted to make sure there was no IP overlap.

So what PBR configuration did you try ?

Jon

Jason M. · ‎10-16-2015

Well your policy should look like this if your configuration for the WAN interfaces are correct.

ip access-list standard aa
permit a.a.a.0 0.0.0.7

ip access-list standard bb
permit b.b.b.0 0.0.0.7

route-map DUAL-WAN permit 10
match ip address aa
set ip next-hop A.A.A.1
route-map DUAL-WAN permit 20
match ip address bb
set ip next-hop B.B.B.2

interface GigabitEthernet0/2
ip policy route-map DUAL-WAN

Peter Koltl · ‎10-18-2015

Do you really need a.a.a.0 and b.b.b.0 networks in the same VLAN on the LAN? If you could separate them into two VLANs you could create two vrfs:

vrf a G0/0.aa , G0/2.a

vrf b G0/0.bb , G0/2.b

The network could operate without the secondary subnet and the vrfs implement two entirely independent virtual router. Policy-based routing is not necessary in this case.

linksanguinario · ‎10-20-2015

sorry i have been very busy... tomorrow i promise ill try all you comments. thx