* Multicast routing question...
@ 2003-08-29 1:36 Guilherme Cox
2003-08-29 13:55 ` port redirect for localy generated request Sundaram Ramasamy
0 siblings, 1 reply; 4+ messages in thread
From: Guilherme Cox @ 2003-08-29 1:36 UTC (permalink / raw)
To: netfilter
I'd like to know if I can use iptables to solve one problem.
My network is:
<----Local Network/NAT (192.168.7.x) -- eth0
<----Internet link/Cisco router -- eth1
<----ViaSat router/A Satelite link(10.254.103.x) -- eth2
My default gateway is the Cisco router IP.
I have static routes to networks connected using eth2.
My /sbin/route is:
cox@earth:~$ /sbin/route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
xxx.xxx.xxx.128 0.0.0.0 255.255.255.192 U 0 0 0
eth1
192.168.7.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.149.0 10.254.103.1 255.255.255.0 UG 0 0 0 eth2
yyy.yyy.yyy.0 10.254.103.1 255.255.255.0 UG 0 0 0 eth2
10.254.103.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
224.0.0.0 0.0.0.0 240.0.0.0 U 0 0 0 eth0
0.0.0.0 xxx.xxx.xx.129 0.0.0.0 UG 1 0 0 eth1
--x--
Using this model the Multicast packets came from eth2 aren't routed to my
Local Network (eth0).
If I connect the VaiSat router on my switch and use ip-aliases, I can
receive the IGMP. However, it is unsafe. I need to mantain my network but
the multicast packets must be routed to eth0.
Do you know how can I do? Any ideias? Did anybody have the same problem?
If you want more information about my network, please contact me.
Thanks and sorry my english mistakes.
cox
^ permalink raw reply [flat|nested] 4+ messages in thread
* port redirect for localy generated request
2003-08-29 1:36 Multicast routing question Guilherme Cox
@ 2003-08-29 13:55 ` Sundaram Ramasamy
2003-08-30 3:33 ` port redirect for locally " Mark E. Donaldson
2003-08-30 8:04 ` port redirect for localy " Thorsten Scherf
0 siblings, 2 replies; 4+ messages in thread
From: Sundaram Ramasamy @ 2003-08-29 13:55 UTC (permalink / raw)
To: netfilter
Hi,
With this rule incoming request for port 80 redirected to port 8080. But
this is not working localy generated request.
iptables -t nat -A PREROUTING -p tcp --dport 80 -d LISTEN_IP -j DNAT --to
LISTEN_IP:80
How will i redirected local request port 80 to port 8080 ?
Thanks
^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: port redirect for locally generated request
2003-08-29 13:55 ` port redirect for localy generated request Sundaram Ramasamy
@ 2003-08-30 3:33 ` Mark E. Donaldson
2003-08-30 8:04 ` port redirect for localy " Thorsten Scherf
1 sibling, 0 replies; 4+ messages in thread
From: Mark E. Donaldson @ 2003-08-30 3:33 UTC (permalink / raw)
To: Sundaram Ramasamy, netfilter
Use REDIRECT:
iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-ports 8080
specify an interface if necessary.
-----Original Message-----
From: netfilter-admin@lists.netfilter.org
[mailto:netfilter-admin@lists.netfilter.org]On Behalf Of Sundaram
Ramasamy
Sent: Friday, August 29, 2003 6:56 AM
To: netfilter@lists.netfilter.org
Subject: port redirect for localy generated request
Hi,
With this rule incoming request for port 80 redirected to port 8080. But
this is not working localy generated request.
iptables -t nat -A PREROUTING -p tcp --dport 80 -d LISTEN_IP -j DNAT --to
LISTEN_IP:80
How will i redirected local request port 80 to port 8080 ?
Thanks
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: port redirect for localy generated request
2003-08-29 13:55 ` port redirect for localy generated request Sundaram Ramasamy
2003-08-30 3:33 ` port redirect for locally " Mark E. Donaldson
@ 2003-08-30 8:04 ` Thorsten Scherf
1 sibling, 0 replies; 4+ messages in thread
From: Thorsten Scherf @ 2003-08-30 8:04 UTC (permalink / raw)
To: Sundaram Ramasamy, netfilter
> With this rule incoming request for port 80 redirected to port 8080. But
> this is not working localy generated request.
> iptables -t nat -A PREROUTING -p tcp --dport 80 -d LISTEN_IP -j DNAT --to
> LISTEN_IP:80
You have to use the OUTPUT Chain for localy generated packets:
iptables -t nat -A OUTPUT -p tcp --dport -d $LISTEN_IP -j DNAT --to
$LISTEN_IP:8080
Greetings,
Thorsten Scherf
RHCE, RHCX
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2003-08-30 8:04 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2003-08-29 1:36 Multicast routing question Guilherme Cox
2003-08-29 13:55 ` port redirect for localy generated request Sundaram Ramasamy
2003-08-30 3:33 ` port redirect for locally " Mark E. Donaldson
2003-08-30 8:04 ` port redirect for localy " Thorsten Scherf
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