* Setup simple PC-based router using IPTABLES
@ 2005-01-12 8:53 Lim Boon Ping
2005-01-12 9:09 ` Ming-Ching Tiew
2005-01-12 9:10 ` Jacob Mathew
0 siblings, 2 replies; 3+ messages in thread
From: Lim Boon Ping @ 2005-01-12 8:53 UTC (permalink / raw)
To: netfilter
Hi,
I need some help on using IPTABLES to setup a simple PC-based router (for LAN usage).
The PC consists of a 10/100 NIC on eth0, and a gigabit fiber NIC on eth1. The gigabit fiber NIC is connected to another fiber-based port, whereas the 10/100 NIC is connected to a 10/100 hub. Now, for all packets coming from eth0, forward it to eth1, and vice versa.
Could anyone verify/suggest commands to set for this setting?
# iptables -A FORWARD -i eth0 -o eth1
# iptables -A FORWARD -i eth1 -o eth0
Is it that's all we need to do? Thanks.
Regards,
Jocelyn
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Setup simple PC-based router using IPTABLES
2005-01-12 8:53 Setup simple PC-based router using IPTABLES Lim Boon Ping
@ 2005-01-12 9:09 ` Ming-Ching Tiew
2005-01-12 9:10 ` Jacob Mathew
1 sibling, 0 replies; 3+ messages in thread
From: Ming-Ching Tiew @ 2005-01-12 9:09 UTC (permalink / raw)
To: netfilter
From: "Lim Boon Ping" <syseeker@yahoo.com>
>
> Could anyone verify/suggest commands to set for this setting?
> # iptables -A FORWARD -i eth0 -o eth1
> # iptables -A FORWARD -i eth1 -o eth0
>
> Is it that's all we need to do? Thanks.
iptables is not even needed.
Just
echo 1 > /proc/sys/net/ipv4/ip_forward
Will do.
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Setup simple PC-based router using IPTABLES
2005-01-12 8:53 Setup simple PC-based router using IPTABLES Lim Boon Ping
2005-01-12 9:09 ` Ming-Ching Tiew
@ 2005-01-12 9:10 ` Jacob Mathew
1 sibling, 0 replies; 3+ messages in thread
From: Jacob Mathew @ 2005-01-12 9:10 UTC (permalink / raw)
To: Lim Boon Ping; +Cc: netfilter
#Allow all connections OUT and only existing and related ones IN"
iptables -A FORWARD -i eth0 -o eth1 -m state --state ESTABLISHED,RELATED -j
ACCEPT
iptables -A FORWARD -i eth1 -o eth1 -j ACCEPT
# Enable SNAT (MASQUERADE) functionality on eth0"
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
in this scenario eth0 is external and eth1 is internal
regds
Jacob
----- Original Message -----
From: "Lim Boon Ping" <syseeker@yahoo.com>
To: <netfilter@lists.netfilter.org>
Sent: Wednesday, January 12, 2005 2:23 PM
Subject: Setup simple PC-based router using IPTABLES
> Hi,
>
> I need some help on using IPTABLES to setup a simple PC-based router (for
> LAN usage).
> The PC consists of a 10/100 NIC on eth0, and a gigabit fiber NIC on eth1.
> The gigabit fiber NIC is connected to another fiber-based port, whereas
> the 10/100 NIC is connected to a 10/100 hub. Now, for all packets coming
> from eth0, forward it to eth1, and vice versa.
> Could anyone verify/suggest commands to set for this setting?
> # iptables -A FORWARD -i eth0 -o eth1
> # iptables -A FORWARD -i eth1 -o eth0
>
> Is it that's all we need to do? Thanks.
>
> Regards,
> Jocelyn
>
>
> ---------------------------------
> Do you Yahoo!?
> Read only the mail you want - Yahoo! Mail SpamGuard.
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2005-01-12 8:53 Setup simple PC-based router using IPTABLES Lim Boon Ping
2005-01-12 9:09 ` Ming-Ching Tiew
2005-01-12 9:10 ` Jacob Mathew
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