ELSA Cable manual IP address IP netmask Router name Dist This is what happens

Operating modes and functions 33

IP address	IP netmask	Router	Dis-
			tance
224.0.0.0	224.0.0.0	0.0.0.0	0
255.255.255.255	0.0.0.0	CABLE	1
192.168.130.0	255.255.255.0	191.168.140.123	1

What do the various entries on the list mean?

KIP addresses and IP network masks

This is the address of the destination network to which data packets may be sent and its associated network mask. The router uses the network mask and the destination IP address of the incoming data packets to check whether the packet belongs to the destination network in question.

The route with the IP address "255.255.255.255" with a network mask of "0.0.0.0" is the default route. Any data packets which cannot be routed by other routing entries are transmitted via this route.

KRouter Name

The router name indicates what should be done with the data packets that correspond to the IP address and the network mask.

Routes with the router name "0.0.0.0" describe Exclusion routes. Data packets for this “zero route“ are rejected and are not routed any further. This is how routes which are forbidden on the Internet (private address spaces, e.g. 10.0.0.0), for example, are excluded from transmission.

If a router name consists of an IP address, this means we are dealing with a locally accessible router, responsible for the transmission of the appropriate data packets.

By default, you will find the entry „CABLE“ in the cable modem, as a router name at the default route. All IP data packets transferred via this route are forwarded to the cable interface.

KDistance

Number of routers between your own and the destination router.

Examples with explanatory notes:

IP address	IP netmask	Router name	Dist.	This is what happens:
192.168.130.0	255.255.255.0	192.168.140.123	0	All data packets with destination
				IP addresses 192.168.130.x are
				transmitted to the locally accessi-
				ble router with the IP address
				192.168.140.123.

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