I have configured a machine with multihoming. i.e. the machine is having only one lan card and i hv. assigned 10.152.16.35 & 172.16.4.4 as ip-addresses. The OS installed is RHEL 4.

My ifcfg-eth0 file looks like this :
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=10.152.16.37
NETMASK=255.255.255.248
GATEWAY=10.152.16.33

The ifcfg-eth0:1 file looks like this :

DEVICE=eth0:1
ONBOOT=yes
BOOTPROTO=static
IPADDR=172.16.4.4
NETMASK=255.255.252.0

my /etc/selinux/config is saying "SELINUX=Permissive" & "SELINUXTYPE=targeted".

The firewall is "Enabled".

for the network 10.152.0.0 i have a GATEWAY=10.152.16.33,which i am able to ping from my machine i.e. 10.152.16.35.

The necessary dns entries in /etc/resolve.conf are made.

The proxy server is configured at another office having ip "10.152.3.10". which i am not able to ping from machine. In browser, i have entered the proxy address and the necessary port also. The pinging results in "connect:Network is unreachable".

If i am trying to connect to any site from browser, i am getting message "The Proxy server is refusing connections."

But if i am assigning the ip "10.152.16.36" to another machine having FC5 as OS then the browsing goes on smoothly. What will be the problem?
- JAGDISH.
~

My guess is that the firewall is blocking the requests. You should either disable the firewall (unsafe depending on the situation) or configure it to at least allow traffic on port 80; incoming from your internal network and outgoing to wherever you need to go (probably 10.152.3.10?). Also make sure that your routes are set correctly (you can see them with the command 'route').