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I have been trying to setup a gateway for my network. The gateway computer is using RedHat 7.0. There are two more computers: one using RedHat 7.0 and a new one using RedHat 7.2.
RH 7.0 comes with netcfg, which allows to specify the IP address of the gateway (192.168.0.1). RH 7.2 has a different network configuration program that does not allow the user to enter that information. The RH 7.0 client computer can see the internet through the gateway without any problem. The RH 7.2 computer insists that the gateway IP is 192.168.0.254. How do I tell the RH 7.2 computer that the gateway IP address is 192.168.0.1?
I tried all suggestions. For RedHat 7.2, this is the final case:
1) route works for the current session, but does not make a permanent change to the gateway setting
2) Editing the /etc/sysconfig/network and changing the value of GATEWAY= does not make a permanent change either.
3) running /usr/sbin/setup brings up a text-based interface that does make a permanent change to the gateway IP address.
Editing /etc/sysconfig/network and adding a GATEWAY=x.x.x.x line IS permanent too... Change it and restart networking by doing /etc/rc.d/init.d/network restart and then do a "netstat -rn" to see your route tables. Reboot and check again. That file is parsed on bootup. If yours is not, something is broken on yours.