2821 & HWIC-4ESW= 2

[hunterdw]

So, I have a 2821... I just use it for basic VPN connectivity.

Gi0/0 goes out to the WAN - fibre connection with ethernet handoff

Gi0/1 goes back to my internal network

I would like my 2821 to also route to a second ISP... could an HWIC-4ESW= do that for me?

So, Gi0/0 - out to ISP#1
Gi0/1 - back to my internal network
Port #1 on HWIC-4ESW= with an IP address routing out ISP#2?

I've read mixed statements on whether you can use HWIC-4ESW for layer 3 routing... anyone know?

--DW

 

[KiscoKid]

I believe you can only configure layer 2 related functions with this module so you can't configure an IP address (layer 3) for any of the 4 switch ports.

 

[ADB100]

You can however create Layer-3 SVI (VLAN) interfaces and put each of the Layer-2 interfaces in separate VLAN's. You can then route between them:

vlan 10
!
vlan 20
!
vlan 30
!
vlan 40
!
interface FastEthernet0/1/1
switchport access vlan 10
!
interface FastEthernet0/1/2
switchport access vlan 20
!
interface FastEthernet0/1/3
switchport access vlan 30
!
interface FastEthernet0/1/4
switchport access vlan 40
!
interface VLAN 10
ip address 10.10.1.254 255.255.255.0
!
interface VLAN 20
ip address 10.20.1.254 255.255.255.0
!
interface VLAN 30
ip address 10.30.1.254 255.255.255.0
!
interface VLAN 40
ip address 10.40.1.254 255.255.255.0
!


I am not sure about the interface numbering on the hWIC-4ESW module but the logic is correct. I am not sure about the performance though as it is likely to be s/w switched?

HTH

Andy

 

[hunterdw]

Yeah, thanks guys. Stars for you both.

You answered my question - but it's not the answer I want!

I want to be able to route out two different ISPs on my 2821.

No big deal - I'll just get a second 2821 for the 2nd ISP. I'm using a 1710 for the 2nd ISP now and I'm having CPU/buffer issues - it's time for an upgrade.

--DW