Lancom Systems LCOS 3.50 - Manual (Page 76)

LANCOM Reference Manual LCOS 3.50 ̈ Chapter 7: Routing and WAN connections
76
Routing and
W
A
N
con
n
ections
Which protocols can be transmitted using IP masquerading?
IP masquerading for all IP protocols that are based on TCP, UDP, or ICMP and
communicate exclusively through ports. One example of this type of uncom-
plicated protocol is the one the World Wide Web is based on: HTTP.
Individual IP protocols do use TCP or UDP, but do not, however communicate
exclusively through ports. This type of protocol calls for a corresponding spe-
cial procedure for IP masquerading. Among the group of protocols supported
by IP masquerading in the LANCOM are:
̈ FTP (using the standard ports)
̈ H.323 (to the same extent as used by Microsoft Netmeeting)
̈ PPTP
̈ IPSec
̈ IRC
Configuration of IP masquerading
The use of IP masquerading is set individually for each route in the routing
table. The routing table can be reached as follows:
Multiple addresses for the router
Masquerading pits two opposing requirements of the router against one
another: While it must have an IP address which is valid on the local network,
it must also have an address valid on the Internet. Since these two addresses
may not in principle be located on the same logical network, there is only one
solution: two IP addresses are required. Therefore, most standard Internet
connections assign the router’s Internet IP address dynamically during the PPP
negotiation.
Configuration tool Run
LANconfig IP router ̈ Routing ̈ Routing table
WEBconfig Expert Configuration ̈ Setup ̈ IP-router-module
IP-routing-table
Terminal/Telnet /setup/IP-router-module/IP-routing-table