Reply below:
Date: Sat, 28 Jan 2006 07:03:23 +0000
From: Mark < mark@xxxxxxxxxxx>
Subject: FC 4 Networking bridge
To: For users of Fedora Core releases <fedora-list@xxxxxxxxxx>
Message-ID: < 43DB173B.3030700@xxxxxxxxxxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi all
Perhaps I am being a lil dim here as a new linux sysadmin personage
(previous preference was for windows, emphasis on "was")
For some reason I have not been able to get a working network along the
following lines.
NOTE this network is purely for systems testing, bandwidth etc, hence
the daisy chain effect.
I have 2 servers, both running FC4 and a cisco router.
The aim is to test throughput from one server to the other via the cisco.
My proposed solution is as follows:
Both servers have 2 gigE nics
Cisco has 2 interfaces which I have named ciscoLan and ciscoWan
Basically I want server 1 with eth0 connected to my DMZ network (and the
world at large) witha public IP address
I then want to configure eth1 with another public IP to connect directly
to the ciscoWan
I already have the cisco connected via ciscoLan to server 2 using NAT
and private IPs but I cannot get eth1 on server 1 to come up with the IP
address I need and then talk to the cisco.
I think the issue may be that I need to enable bridging of sorts between
the 2 NICs, as MS does with ICS etc.
So the question is, how do I acheive that?
As far as I can tell, I have all the interfaces configured correctly.
I can`t give the actual IPs here, but I will give an example:
All Xs give the same subnet
Server 1
/etc/sysconfig/network
NETWORKING=yes
HOSTNAME=test-server-01.domain.net
GATEWAY=X.X.X.33
/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=none
HWADDR=00:14:22:22:04:1A
>TYPE=Ethernet
IPADDR=X.X.X.41
NETMASK=255.255.255.224
GATEWAY=X.X.X.33
/etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
HWADDR=00:14:22:22:04:1A
>TYPE=Ethernet
NETMASK=255.255.255.224
IPADDR=X.X.X.42
GATEWAY=217.30.126.33 <- is this a problem????
Have I really missed something and thats why this server can`t talk to
my cisco on eth1? By the way, the cisco has an IP of X.X.X.62
I am trying to have both eth0 and eth1 having IPs only 1 apart and the
gateway for eth1 is set to the same as eth0. Is this adding to the
problems?
I can solve it fairly easily by installing windows on server 1 and
configure ICS etc, but I would rather avoid that for 2 reasons:
- having FC4 on the server is beneficial for us after this roject
- I don`t want to give in to this problem, I would rather solve it.
Thanks in advnace.
Mark
--
Not a real expert here but I think iptables is where you need to look. Do a:
man iptables
also you might look into www.yolinux.com/TUTORIALS/LinuxTutorialiptablesNetworkGateway.html
Have fun!
Tod
