RIP (Routing Information Protocol)
RIPv1
Original RIP implementation, limited to classful routing
(obsolete)
RIPv2
Introduced support for classless routing, authentication,
triggered updates, and multicast announcements
RIPng (RIP Next Generation)
Extends RIPv2 to support IPv6 routing (RFC 2080); functions
very similarly to RIPv2 and is subsequently as limited
Protocol Type: Distance Vector
Rip Algorithm: Bellman-Ford
Admin Distance: 120
Metric Hop count: 15 Max
IP Version: IPv6 IPv4
Transport: Udp (Port No 520)
Authentication: Plaintext, MD5
Multicast IP: 224.0.0.9/FF02::9
Timer Defaults
Update 30 Sec
Invalid 180 Sec
Flush 240 Sec
Hold-down 180 Sec
Protocols Comparison
RIPv1
|
RIPv2
|
RIPng
| |
IP
|
IPv4
|
IPv4
|
IPv6
|
Admin Distance
|
120
|
120
|
120
|
UDP Port
|
520
|
520
|
521
|
Classless
|
No
|
Yes
|
Yes
|
Adv. Address
|
Broadcast
|
224.0.0.9
|
FF02::9
|
Authentication
|
None
|
Plain, MD5
|
None
|
Terminology |
Split Horizon
A rule that states a router may not advertise a route back to the neighbor from which it was learned.
Route Poisoning
When a network becomes unreachable, an Update with an infinite metric is generated to Explicitly advertise the route as unreachable
Poison Reverse
A router advertises a network as unreachable through the interface on which it was learned.
Rip Configuration
router rip
Authentication
Troubleshooting IPV4 & IPv6
Rip Configuration
router rip
version 2
no auto-summary
network 192.168.1.0
default-information originate
Note: Rip version 1 configuration same as rip version 2 the only different is no auto-summary command does not effect in ripv1 and it does not support authentication.
Passive Interface Command
Passive Interface Command
passive-interface
Note: Execute this command under the router rip command then it will effect in interface
Authentication
ip rip authentication mode md5
ip rip authentication key-chain key-chain
Troubleshooting IPV4 & IPv6
show ip[v6] protocols
show ip[v6] rip database
debug ip rip { database | events }
debug ipv6 rip [interface]
