[CentOS] Iptables port forwarding help
Thomas E Dukes
edukes at alltel.net
Fri Apr 14 00:14:00 UTC 2006
> -----Original Message-----
> From: centos-bounces at centos.org
> [mailto:centos-bounces at centos.org] On Behalf Of Dan Pritts
> Sent: Thursday, April 13, 2006 7:37 PM
> To: CentOS mailing list
> Subject: Re: [CentOS] Iptables port forwarding help
>
> Is IP forwarding turned on?
>
> echo 1 > /proc/sys/net/ipv4/ip_forward
Hello Dan,
Yes, its turned on earlier in the script:
echo " Enabling forwarding.."
echo "1" > /proc/sys/net/ipv4/ip_forward
>
>
> On Thu, Apr 13, 2006 at 07:29:53PM -0400, Thomas E Dukes wrote:
> > Hello,
> >
> > I have a webcam that I wish to view from the internet. It is a
> > wireless linksys model with an ip address of 192.168.1.15.
> I have it
> > set on port 8081, 192.168.1.15:8081.
> >
> > I am using the IP Masquerade HowTo script. Here's the rule
> I added to
> > my firewall script:
> >
> > EXTIF="ppp0"
> > INTIF="eth1"
> > EXTIP="`$IFCONFIG $EXTIF | grep inet | cut -d : -f 2 | cut
> -d \ -f 1`"
> >
> >
> > $IPTABLES -A FORWARD -i $EXTIF -o $INTIF -p tcp --dport
> 8081 -m state
> > \ --state NEW,ESTABLISHED,RELATED -j ACCEPT
> >
> > $IPTABLES -A PREROUTING -t nat -p tcp -d $EXTIP --dport 8081 \ -j
> > DNAT --to 192.168.1.15:8081
> >
> > Its not working. Can anyone offer a suggestion?
> >
> > TIA
> >
> >
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>
>
> danno
> --
> dan pritts - systems administrator - internet2
> 734/352-4953 office 734/834-7224 mobile
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