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Route between 2 Ethernet interfaces to a PIX to the Net

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webnetwiz

MIS
Mar 30, 2001
325
US
I know I've posted same thing before, but now the setup is easier. I have a Cisco 1720 with 1 built-in FastEthernet0, and a WIC-1ENET Ethernet0 card. I am running IOS 12.1-5.YB1.

I need to:

1. Setup a DHCP server on the router to provide IP addresses to 5-6 hosts on the FastEthernet0 interface.
2. Be able to go from FastEthernet0 interface to Ethernet0, now the network that's connected to Ethernet0, has a default gateway that's an inside interface of a PIX firewall. So essentially, the traffic destined for the internet needs to go from FastEthernet0 interface to Ethernet0, and then go to inside interface of the PIX firewall, and then go to the internet (the PIX has a default route to the edge router).

Any thoughts? So far, I have the IP addresses for interfaces of the 1720 setup. My IP routing table reads

Gateway of last resort is w.x.y.z (PIX Inside IP) to network 0.0.0.0

w.0.0.0/# is subnetted, 1 subnet (My inside network behind PIX)
C w.x.0.0 is directly connected, Ethernet0 (link to Inside network)
C w.x.y.0/24 is directly connected, FastEthernet0 (an interface that links these 5 new hosts)
S* 0.0.0.0/0 via w.x.y.z (PIX Inside IP)

Thanks in advance.

David.
 
Fixed the problem myself. Th ePIX firewall needs a route statement to route the packets from the outside back inside.

route inside w.x.y.z mask internal_router_IP
 
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