SMC Networks 7908VOWBRA2, User Manual, Page: 88 / 151

C
ONFIGURING THE
V
OICE
ADSL R
OUTER
4-52
RIP sends routing-update messages at regular intervals and when the
network topology changes. When a router receives a routing update that
includes changes to an entry, it updates its routing table to reflect the new
route. RIP routers maintain only the best route to a destination. After
updating its routing table, the router immediately begins transmitting
routing updates to inform other network routers of the change.
Poison Reverse A method for preventing loops that would cause
endless retransmission of data traffic.
Authentication Required • None: No authentication.
• Password: A password authentication key is
included in the packet. If this does not match
what is expected, the packet will be discarded.
This method provides very little security as it
is possible to learn the authentication key by
watching RIP packets.
• MD5: An algorithm that is used to verify data
integrity through the creation of a 128-bit
message digest from data input (which may
be a message of any length) that is claimed to
be as unique to that specific data as a
fingerprint is to a specific individual.
Authentication Code Password or MD5 Authentication key.
Parameter Description