EIGRP IPv6

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| Configuration text:                                        

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|        Router(config)#  ipv6 unicast-routing                

|        Router(config)# ipv6 router ei 1                

|        Router(config-rtr)# no shutdown

   Router(config-rtr)# router-id                 

|                                                        

|        Router(config)# interface f0/0                                

|        router(config-rtr)# ipv6 eigrp 1                

|                                                        

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1- EIGRPv6 Enable in a Interface

        => Auto create a EIGRPv6 Process.

> When Enable EIGRPv6 in a Interface, must "no shutdown" in EIGRP Process mode.

2- IN NBMA : Same as RIPng

> keyword " broadcast" add only in Frame-relay map with Link-local

3- Split-horizon in EIGRPv6:

> Enable in Interface mode        => Impact only its this interface

4- Advertise a default-route:

> On Interface mode

> Create a default-route and Redistribute Static.

>Summary 

5- Summary address EIGRPv6:

> Unlike IPv4, cannot associate a leck-map with the summary prefix and allow specific routing.

 

 example: Ensure that R5 advertises an optimal summary prefix for the IPv6 addresses of R5’s and SW2’s Loopback 100 interfaces.

FC00:1:0:5::/64

           FC00:1:0:8::/64

=

0000 0000 0000 00101 = 5

0000 0000 0000 01000 = 8

= FC00:1::/60

Config R5: #interface Serial1/1  #ipv6 enable  #ipv6 eigrp 100  #ipv6 summary-address eigrp 100 FC00:1::/60 #interface serials1/0  #ipv6 summary-address eigrp 100 FC00:1::/60

Note: khi su dung summary trong bang dinh tuyen R5 tao ra route -> Null 0 voi AD=5. de xoa route nay thi cho AD=255 khi summary.

D   FC00:1::/60 [5/128256]

                 via Null0, directly connected

8. Filtering route in EIGRPv6

> Distribute-list + prefix-list:

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

>> Configuration in EIGRP process mode.

Example:     + Configure R5 to block the IPv6 prefix corresponding to R6’s Loopback 100 interface from entering the local routing table.

+ 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 eigrp 100   # distribute-list prefix-list DENY_L0_R6 in