RIPng

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| Configuration text:

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|        Router(config)#  ipv6 unicast-routing

|

|        Router(config)# interface f0/0

|        router(config-if)# ipv6 rip [name] enable

|                example : ipv6 rip ccie enable

|        * note: "Name" mean local only

|

|=================================================

1- Enable RIPng in a interface        => Auto Create a RIPng Process on Router

2- RIPng in NBMA:

> Map static IPv6 global next-hop with DLCI local (Don't need keyword "broadcast" )

> Map Static IPv6 Link-local with DLCI Local, must add keyword "broadcast"

> Note Reachable in Routing table when learn by NBMA        => Layer 3 to Layer 2 must Reachable.

3- By default RIPng using "Split-horizon" same as RIPv2 but:

> Diable Split-horizon in RIPng implement in RIPng Process ( Router RIP mode)

>> command: no split-horizon

4- Redistribute between Two RIPng process note:

> Default don't advertise "connected network"        => you must do it.

5- Advertise default-route in RIPng:

> Advertise in Interface mode only

>> command : ipv6 rip [name] default-information originate

> Note: If Using : "ipv6 rip [name] default-information only"        => Advertise only 1 default-route and suppress other Specific route.

6- Filtering route in RIPng: (two ways)

> Distribute-list + prefix-list:

>> Create "Black-hold"        => Prefix-list must "Permit" any

>> Configuration in RIP process mode.

>>

Example: L100(R6): FC00:1:0:6::6/64

In R5: filter L100 (R6) and Permit any other IPv6 prefixes

Config R5: #ipv6 prefix-list DENY_L0_R6 seq 5 deny FC00:1:0:6::/64 #ipv6 prefix-list DENY_L0_R6 seq 10 permit ::/0 le 128                    //permit any   #ipv6 router rip RIPNG   # distribute-list prefix-list DENY_L0_R6 in

> Metric-offset :

>> using only for per-interface.

>> cannot specific a route for "deny" ( Increase HOP COUNT to 16)

>>> Deny all route learn by neighbor.

>> command: configuration in Interface mode:

>>> ipv6 rip [name] metric-offset 16

Example:  R4 have L0 R5 via frame relay link and point-to-point link. Config p2p link is primary

Config R4: #interface s1/0.1 p2p   #ipv6 rip RIPNG metric-offset 3

 7- Summary address.

• config in mode interface:

#ipv6 rip [WORD] summary {address}

Example:

FC00:X:0:5::/64

FC00:X:0:1::/64  

FC00:X:0:4::/64

=

0000 0000 0000 0101

0000 0000 0000 0001

0000 0000 0000 0100

=> FC00:0::/61

• Advertise only summary route . Prevent specti route