How to turn on IP forwarding?

[Jonathan Ryshpan]

On Thu, 2004-10-07 at 00:13, Ow Mun Heng wrote: 
> On Thu, 2004-10-07 at 14:27, Jonathan Ryshpan wrote:
> > I'm trying to make the machine amito forward packets from machine
> > claremont to machine home.  Claremont pings amito and amito pings home,
> > but claremont doesn't ping home.  All these machines are directly
> > connected via ethernet claremont to amito on 192.168.10.x and amito to
> > home on 172.16.0.x.  I have IP forwarding turned on in amito:
> > 
> > 	amito $ cat /proc/sys/net/ipv4/ip_forward
> > 	1
> > 
> 
> Okay.. IP forwarding is turned on.
> 
> > Claremont should have its gateway set up OK:
> > 	claremont $ route
> >         Kernel IP routing table
> >         Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
> >         192.168.10.0    *               255.255.255.0   U     0      0        0 eth0
> >         169.254.0.0     *               255.255.0.0     U     0      0        0 eth0
> >         default         amito.localdoma 0.0.0.0         UG    0      0        0 eth0
> Cool. Default traffic which is not destined for local net is sent to the
> gateway.
>         
> > and should know where home is:
> > 
> > 	claremont $ cat /etc/hosts
> > 	# Do not remove the following line, or various programs
> >         # that require network functionality will fail.
> >         127.0.0.1		localhost.localdomain localhost
> >         192.168.10.1		amito.localdomain amito
> >         192.168.10.2		claremont.localdomain claremont
> >         172.16.0.1		home home.localdomain
> > 
> > What have I missed?
> Can you tell us what is the routing table on claremont? since amito can
> ping home, it means there's connectivity.
> 
> But since claremont cannot ping home, this could mean several things.
> 
> 1. Firewall? 
> 2. Wrong routing table.

The above routing table **is** the routing table in claremont.
The firewall in amito is turned off.

BTW: amito is running FC2.

jon