[NTLUG:Discuss] Linux Router Configuration

[Mike Hart]

Did you take the network down and back up after the configuration?  Depending on how you are approaching the settings, they may just not be active because the network is still active using the older settings. 

# ifdown eth0 

followed by 

# ifup eth0 

--- On Sat, 12/4/10, Dennis <dennis at dearroz.com> wrote:

From: Dennis <dennis at dearroz.com>
Subject: [NTLUG:Discuss] Linux Router Configuration
To: "Discuss NTLUG" <discuss at ntlug.org>
Date: Saturday, December 4, 2010, 6:29 PM

I am attempting to set up a very simple router using Fedora 11.  I must be doing something that is obviously wrong, but do not know what.

What I have done:
1.    On Ethernet 0 I set up a secondary address on a different network.
2.    I set the /etc/sysctl.conf file to set the net.ipv4.ip_forward = 1.
3.    I turned iptables (chkconfig) off in order to insure that nothing would interfer.
4.    I ssh'ed to another computer where I then pinged both my normal "router" address and the secondary address.  The secondary address does not respond (primary does).

Everything I have searched on the Internet points to that being the only requirement.  Once I get the base system running, then I can play with the iptables configuration.

Appreciate advice

Dennis


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