Need help with Configuration

[dj214]

Hello All:

Just getting my feet wet with routing and need a little help with a configuration.

Have a segment of the network routing out through a 1720. Set up now with FA0 10.0.2.250 (lan gateway)

and SER0 63.148.226.x

What I need to do is drop a sonicwall firewall between router and LAN. I would like firewall to handle NAT, no NAT on router.

I'm having a problem figuring out config for interfaces on firewall. Need the lan segment to remain on 10.0.2.x but route out through FW and router.

If FA0 on router is 10.0.2.250, how would I set up firwewall lan and wan ports? Basic question I know but as I said, just getting started.

thanks

[ahbanks]

How many public addresses do you have? Hopefully, more than two.

The configuration will involve creating another subnet with a public address for the F0/0 interface.

You will need to configure the router something like this:

interface serial 0/0

ip address 63.148.226.2 255.255.255.252

no shut

!

interface fastethernet0/0

ip address 63.148.226.5 255.255.255.252

no shut

!

ip route 0.0.0.0 0.0.0.0 63.148.226.1

ip route 192.168.0.0 255.255.0.0 63.148.226.6

ip route 172.16.0.0 255.240.0.0 63.148.226.6

ip route 10.0.0.0 255.0.0.0 63.148.226.6

The sonicwall will have outside IP address 63.148.226.6, default gateway 63.148.226.5

HTH!