Replacing old linux gateway the soft way.
Hi there. I've got the following task:
I have a 255.255.255.0 network from 192.168.0.1 to 254. The gateway is a linux machine at 192.168.0.1.
It uses a dsl dialup and currently has the following routing:
We bought a hardware router, which is meant to replace the linux machine, which has the IP 192.168.0.250.
# route -n
Ziel Router Genmask Flags Metric Ref Use Iface
217.0.xxx.xxx 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
192.168.99.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 217.0.xxx.xxx 0.0.0.0 UG 0 0 0 ppp0
Now I want to keep the linux machine running and routing, while it uses the new hardware router. I need this, so I don't have to change all the configurations of the clients at once (no DHCP here).
Question: do I have to use two ethernet cards, like in the current state, where eth0 is connected to a DSL modem?
Or can I just happily connect eth1 to the network of the new hardware router and tell the linux machine that it forwardes everything to 192.168.250?
Can you give me a hint? Got iptables installed. Thankyou!