ELSA Documentation


R1-mask

If RIP-1 is set, this option allows you to influence the management of network masks. Therefore, these settings are required only for subnetting under RIP-1. The different settings have the following meaning:

O Class (default): The network mask used in the RIP packet is derived directly from the IP address class, i.e. the following network masks are used for the network classes:
o Class A: 255.0.0.0
o Class B: 255.255.0.0
o Class C: 255.255.255.0
O Address: The network mask is derived from the first bit that is set in the IP address entered. This and all high-order bits within the network mask are set. Thus, for example, the address 127.128.128.64 yields the IP network mask 255.255.255.192.
O Cl+Addr: The network mask is formed from the IP address class and a part attached after the address procedure. Thus, the above-mentioned address and the network mask 255.255.0.0 yield the IP network mask 255.128.0.0.

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