On Wed, 25 Apr 2001, Kevin Chan wrote:
> I would like to ask how to set the IP Forwarding from my RedHat 7.0 Server.
> My Server IP is 192.168.X.X and the clients which use ppp connected to my
> server is 10.0.0.3 . Thanks a lot !
Are you conveying that your clients connect via (multiple) ppp
links to your server ?
I don't know why your clients are on a different network. In fact
your description seems a little unrealistic ...
I'll assume that your server is 192.168.1.10 and that you have
9 clients 192.168.1.1 .... 168.1.9 and that you connect ppp to
an ISP using a real (internet routable) ip. I'll have to assume
that you have the ppp stuff happening to your satisfaction
from this point there are a number of approaches to this task
Kevin
i ensure that ip forwarding is being undertaken in the kernel.
Check the contents of /proc/sys/net/ipv4/ip_forward which ought to
possess a 1 Otherwise, incluce the line
echo "1" > /proc/sys/net/ipv4/ip_forward
as a local instruction in your /etc/rc.d/rc.local
(i.e. at the end of the file)
ii I'll assume that /etc/sysconfig/network-scripts/ifcfg-eth0
is setup correctly so just ensure that
/etc/sysconfig/network looks some thing this :
NETWORKING=yes
FORWARD_IPV4=yes ## key line
HOSTNAME=whatever ## should be setup already
GATEWAYDEV=ppp0 ## could be omitted
GATEWAY=the_ip_your_ISP_gives_you_as_a_dns
iii now the 192.stuff has to be masqueraded to a routable address
and the line
ipchains -A forward -j MASQ -s 192.168.1.0/24 -d 0.0.0.0/0
which should follow any alteraltion to /etc/rc.d/rc.local
will do the magic
cheers,
Kyle Hargraves
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