ELSA Cable manual R98 Description of the menu options, Setup/IP-router-module/Masquerading

R98 Description of the menu options

An IP-RIP routing table might, for example, have the following appearance:

IP-address	IP netmask	Time	Distance	Router
223.245.254.0	255.255.255.0	1	1	192.38.9.100
223.245.257.0	255.255.255.0	1	1	192.38.9.200

Cable-RIP	Select whether RIP packets should be sent into the LAN or cable network here.
LAN-RIP
	Setup/IP-router-module/Masquerading
	This menu allows you to enter settings for the masquerading function. The menu has the
	following layout:

	/Masquerading		Settings for IP masquerading
	Operating		Masquerading function on or off
	TCP-aging-second(s)		Time in seconds after which a TCP masquerading becomes
			invalid
	UDP-aging-second(s)		Time in seconds after which a UDP masquerading becomes
			invalid
	ICMP-aging-second(s)		Time in seconds after which an ICMP masquerading becomes
			invalid
	Service-table		Static masquerading table
	Table-masquerading		Dynamic masquerading table
Service-table	The use of inverse masquerading makes 'services' (e.g. a file server) selectively visible in
	the Internet by entering specified ports in the service table in the IP network, while all
	other services and computers remain invisible from the local network (see also 'IP
	Masquerading (NAT, PAT)' on page 31). The service table (also called the static
	masquerading table) can contain up to 16 entries and has the following layout:
	D-port	Intranet-addr.

2010.1.1.10

2110.1.1.10

The different columns have the following meaning:

KD-port: Destination port for the particular entry

KIntranet-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 colon, to the address.

You can use the command

ELSA MicroLink Cable