Description of the menu options
ELSA LANCOM DSL/10 Office
R41
'IP Masquerading (NAT, PAT)'). The service table (also called the static masquerading
table) can contain up to 16 entries and has the following layout:
The different columns have the following meaning:
K
D-port: Destination port for the particular entry
K
Intranet-addr.: Destination IP address for the computer in the local network
Through this assignment, it is possible, for example, to address the relevant service
directly via telnet. Enter the IP address of the router and attach the port number,
separated by a double point, to the address.
You can use the command
telnet 192.38.50.100:27
to connect directly to a news server that can be reached via a router with the IP address
192.38.50.100.
Table-
masquerading
With IP masquerading, the IP addresses of computers in the local network are rendered
invisible to external devices by means of a conversion of addresses and ports in the
router. The dynamic masquerading table displays the IP addresses from the local
network that the router is currently masking. The dynamic masquerading table can
contain up to 2048 entries and has the following layout:
The different columns have the following meaning:
K
Intranet-addr.: IP address of the computer in the local network
K
S-port: Source port for this entry
K
Protocol: Protocol used (TCP/UDP/ICMP)
K
Timeout: Time in seconds until the entry is removed from the table
D-port
Intranet addr.
20
10.1.1.10
21
10.1.1.10
Intranet addr.
S-port
Protocol
Time
10.1.1.10
1234
TCP
10
