Cannot set up Xserve G5 as gateway

Shookster

Registered
I have the internet on Ethernet 1 and a gigabit switch on Ethernet 2. I use the Gateway Assistant wizard to set it up and it changes the following settings:

Built-in Ethernet 1 (en0) will be used as the WAN connection.
That connection will be shared with the following ports:
- Built-in Ethernet 2 (en1) with IP address 192.168.1.1

DHCP will be turned on and set up with the following subnets:
- Built-in Ethernet 2 (en1) will serve out addresses from 192.168.1.2 to 192.168.1.254

All previously configured subnets for DHCP will be removed.

IP Firewall will be turned on and set up with the following IP Address Groups:
- 192.168.1-net will allow all traffic on Built-in Ethernet 2 (en1)

NAT will be turned on and share the network on Built-in Ethernet 1 (en0)

VPN will not be turned on

DNS will be turned on

When I click Apply, I can no longer get internet access on the server and none of the clients can either. To get it back, I need to go into Network properties and set everything back to DHCP.

Does anyone know what's wrong?
 

Shookster

Registered
For the hell of it, I connected the internet directly to the switch. Amazingly, it now works on all machines. But how can it work if the switch is not a router?
 
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