SMC Networks SMC7908VoWBRA2 manual This method provides very little security as it

CONFIGURING THE VOICE ADSL ROUTER

Parameter	Description
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.

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.

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