[ale] Inbound port forwarding.

Gary S. Mackay Gary at edisoninfo.com
Wed Aug 30 09:57:20 EDT 2000


Yep. That's what I have. It worked just fine when I was on the regular
dial-out modem but not now on the cable modem which uses it's own NIC. Yes, I
get my IP by DHCP from the cable company but it has not changed, ... yet. 

Michael Smith wrote:
> 
> Here's what I have....
> 
> /usr/sbin/ipmasqadm portfw -f
> /usr/sbin/ipmasqadm portfw -a -P tcp -L XXX.XXX.XXX.XXX 80 -R 192.168.1.2 80
> 
> where XXX.XXX.XXX.XXX is your ip address.
> 
> Are you using DHCP?  This could be a problem as your Cable company could
> have short leases times....
> 
> -----Original Message-----
> From: Gary S. Mackay [mailto:Gary at edisoninfo.com]
> Sent: Wednesday, August 30, 2000 8:46 AM
> To: ale at ale.org
> Subject: [ale] Inbound port forwarding.
> 
> I had this all working just fine with a modem connection to the 'net. I
> recently installed a cable modem which works great, (except that they block
> port 80 but that's another story), but can not get the inbound forwarding to
> work now. I have an application running on an NT box behind the masq'd
> network
> that is listening on port 5993. I used that ipmasqadm command to forward
> that
> port from the linux box to the NT box. Worked just fine with the modem. Now
> I
> can see the packets come in on eth0 and die. I'm guessing I'm missing
> something that tells the packets to jump across to the eth1 card so they can
> get to the 192.168.x.x address of the NT box. What am I missing?
> 
> - Gary
> 
> --
> Edison Information Technologies
> P.O. Box 554
> Milan, OH  44846-0554
> 419.499.7040
> www.EdisonInfo.com
> Gary at EdisonInfo.com
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> body.

-- 
Edison Information Technologies
P.O. Box 554
Milan, OH  44846-0554
419.499.7040
www.EdisonInfo.com
Gary at EdisonInfo.com
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