router rip

[ipothos]

hello,

i would like to learn about ripping.
Is important to enable ripping when i have a wide area network with multiple routers or its a kind of dangerous thing.

 

[boymarty24]

Read more here about RIP

http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/rip.htm

But i dont recommend using that protocol.

How big is your WAN? I would go with ospf instead.

 

[ipothos]

my wan consists of a central router and 20 client routers.every client router haw its own network but all the routers "arrive" to the central router.
Is there a possibility to have network problems using rip?
for example network collisions or security problems?

 

[burtsbees]

RIP is limited to 15 hops. Also, RIP ver2 does subnets as well, and can be configured with MD5 encryption to prevent hijacking, man in the middle and replay attacks. If they are Cisco, just use EIGRP with authentication.
Also, to be considered with RIP or any other distance vector routing protocol, if you use subinterfaces (like for frame relay), they may not update RIP advertisements properly because of split-horizon, thus causing a potential routing loop. Link-state protocols are not in danger of this happening (no split horizon), like in OSPF, but OSPF is usually meant for 50 or more routers, to be divided in a heirarchical system in different areas.
Like I say, I think EIGRP would be perfect for you.

Burt

Burt

 

[globalchicken]

I agree that EIGRP is the smart way to go for use as a routing protocol. EIGRP also uses MD5 for authentication. MD5 is not an encryption algorithm but a hashing algorithm. It is useful for the terms you specified such as prevent hijacking, man in the middle and replay attacks. But there is no confidentiality.

DES and 3DES are two ways to encrypt data. MD5 and SHA are just hashing mechanisms.

 

[burtsbees]

Yes, sorry, good catch. I worded that wrong, thanks.

Burt