What happens when you try the following?
iptables -t nat -A PREROUTING -I eth1 -d 69.54.130.16 -p tcp -m tcp --dport 25 -j DNAT --to-destination 10.10.10.12
Can we get an output of your iptables?
"iptables -L -nv --line-numbers"
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Charles Sliger Sent: Wednesday, June 20, 2007 12:21 PM To: 'CentOS mailing list' Subject: RE: [CentOS] BQ/CentOS port forwarding
Here is the corresponding command from my iptables script:
EXTDEV=eth1 EXTIP=69.54.130.16 SMTPIP=10.10.10.12 $IPT -t nat -A PREROUTING -i $EXTDEV -p tcp -d $EXTIP --dport 25 \ -j DNAT --to-destination $SMTPIP
-chaz
Charles L. Sliger, Information Systems Engineer chaz@bctonline.com {Yahoo: chaz_sliger} {Google: chaz.sliger}
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Richard Veale Sent: Friday, June 15, 2007 1:38 PM To: 'CentOS mailing list' Subject: RE: [CentOS] BQ/CentOS port forwarding
I tried to set up IPtables for it using:
iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 3389 -j DNAT \ --to 10.0.0.100
but the 'to' statement does not seem to work on my CentOS box and every time I do anything to IPtables my DNS blows up.
Richard
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Richard Veale Sent: Friday, June 15, 2007 8:32 AM To: 'CentOS mailing list' Subject: RE: [CentOS] BQ/CentOS port forwarding
Thanks Robert, I have a Terminal Services Server that will be behind the inside interface, I need to forward hits on port 3389 eth1 to an IP address behind eth0.
Richard Veale
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Robert Spangler Sent: Thursday, June 14, 2007 10:31 PM To: CentOS mailing list Subject: Re: [CentOS] BQ/CentOs port forwarding
On Thu June 14 2007 18:06, Richard Veale wrote:
Just bought a new BQ/CentOS box with full NuOnce load (Linux 2.6.9-55.ELsmp, gcc 3.4.6, Red Hat 3.4.6-8, Apache 2.0.52, BQ 5102r), to replace my old Qube 3 pro, I have NAT setup (eth0 = inside, eth1 =
outside)
but need to get port forwarding going. What is the best way?
Well it depends on what you are trying to forward But to turn on forward in
general use this;
/bin/echo 1 >/proc/sys/net/ipv4/ip_forward
--
Regards Robert
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