Exposed Host on C850

Tseng · Guest

Hi,

i have a problem with my Cisco 850W Router. Its working nice so far, but i
have problems with Peer2Peer programms and some other applications, which
require incoming connections. Some of them use a random port, so i cant just
forward one port and i dont wanna forward so many ports.

So i searched long and only thing i found is to set an exposed host (so all
traffic which isnt specified to be forwarded to a certain port, will be
redirected to my PC). Don't tell me, that its not good for security, i don't
care. I have a softwarefirewall for security and wanna get rid of the
problems with programms requiring incoming connections.

Bad thing is, i havent found any information on how to set an "exposed host"
on a cisco router. Even in the cisco documents for certified cisco training
there wasn't a single word about exposed hosts.

On some cheap retail routers, this function is also called DMZ (its not real
dmz on cheap servers, but exposed hosts just the companies call it DMZ).

Can anyone help me with this?

P.S. Some specs about the server and IOS:

ROM: System Bootstrap, Version 12.3(8r)YI2, RELEASE SOFTWARE
ROM: Cisco IOS Software, C850 Software (C850-ADVSECURITYK9-M), Version
12.3(8)YI
2, RELEASE SOFTWARE (fc1)
System image file is "flash:c850-advsecurityk9-mz.123-8.YI2.bin"

Bye
Tseng