I'm running FC3 2.6.11-1.35_FC3 on a server motherboard with 2 NICs.
I've been advised that to have IP forwarding (e.g., between subnets off
those NICs (I'll add a third NIC for Internet access), I must add the
command
echo 1 > /proc/sys/net/ipv4/ip_forward
to the /etc/rc.d/boot.local. This person also advises that "I may want
to do the echo command last and include "0" in the init scripts, since
it opens up your network for a short time." But he's a SuSE guru, not a
Fedora Core guru.
My questions are these: a) is this really necessary, or does the kernel
already include IP forwarding built in?
b) As FC3 does not have a boot.local file, where would I put this
command, if it is, in fact, necessary? At the end of
/etc/rc.d/init.d/xinetd, just ahead of the exit $RETVAL? Just after
exit $RETVAL?
c) What about that 0? Where, specifically, should it go?
Thanks for your help.
Eric Hines
--
He can compress the most words into the smallest ideas of any man
I ever met.
- Abraham Lincoln