[Samba] Port Forward UDP 1911
Christopher Barry
cbarry at infiniconsys.com
Tue Mar 11 13:23:28 GMT 2003
Paul,
This, of course is not the list for such questions. This list deals
with samba only. My suggestion to you: get and install shorewall, which
is an excellent configuration front-end for IPTables,
(www.shorewall.net) then read the configuration documentation there,
then if you need further assistance, Google for shorewall-users, and
either join that list, or search the archives.
Good luck
Christopher
On Tue, 2003-03-11 at 03:43, Paul Yip wrote:
> Dear all,
>
> 3 Computers are linked together with cross over cable and computer B is the
> router.
>
> Computer A - Starlight Video Server(Solaris)
> - 192.168.0.11
>
> Computer B - Iptables(Linux)
> - eth0 - 192.168.0.12
> - eth1 - 158.192.92.102
>
> Computer C - Video receiver(Windows)
> - 158.192.92.105
>
> First
> # echo "1" > /proc/sys/net/ipv4/ip_forward
>
> it works fine, video receiver can receive the video from 192.168.0.11.
> The purpose for using iptables is that Internet use can get access our video
> server, also our video server can be protected by iptables.
>
> Second
> modprobe iptables
> for TABLE in filter nat mangle; do
> iptables -t $TABLE -F
> iptables -t $TABLE -X
> done;
> iptables -t nat -A PREROUTING -p udp --dport 1911 -i eth1 -j \
> DAT --to 192.168.0.11: 1911
> iptables -A FORWARD -p udp --dport 1911 -d 192.168.0.11 --j ACCEPT
>
> Video receiver can receive the video, but when we investigate the packets go
> into video receiver.
> Source IP: 192.168.0.11:1911
> Destination IP: 158.192.92.105: 1069
> Protocol: UDP
> Packet Len: 1.46KB
> Data Len: 1.42KB
>
> Third, we execute one more line in order to change the source IP
> # iptables -nat -A POSTROUTING -o eth1 -j \
> SNAT --to 158.192.92.102
>
> But the result doesn't change, we still get packet with source IP. 192.168.0
> 11.
>
> I'd be grateful for any helps or advices.
>
> Paul Yip
>
>
>
>
>
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