Cisco 827 protocol forwarding
Available news archives: comp.lang.tcl - comp.lang.python - comp.security.firewalls - sci.crypt - comp.lang.php - comp.lang.javascript
Google
 
Web news.hping.org


comp.security.firewalls archive

Cisco 827 protocol forwarding

From: Michael <michael.poisoned.address@delete.juneks.com.au.remove>
Date: Sat Jul 23 2005 - 07:21:00 CEST



Hi,



I'm trying to confiigure a cisco 827 to foward requests from the internet 


back to an internal server. I've got them working for UDP and TCP, but i was 


wondering how I go about setting them up for other protocols, such as 47 


(gre). Computers connect via NAT to the outside world.


Internally I have a PPTP VPN server which needs to be externally accessible. 


I've got the control line (tcp port 1723) forwarded ok, but I just need the 


data channel now.....


Here is the config line for my control channel:



ip nat inside source static tcp 172.20.0.1 1723 interface Dialer1 1723



when i try the obvious:



ip nat inside source static 47 172.20.0.1 interface Dialer1



it crashes out saying that the '47' is invalid. is there a way to do this 


properly??



Thanks


Mike 


Received on Thu Sep 29 19:59:16 2005