Re: BGP for address-family ipv6 issue

for 6vpe, if you are trying to use ipv4 as a transport, you need
define neighbor under "address-family vpnv6" (PE-PE) . for
address-faily ipv6 , you need to form atunnel. check this out.

https://supportforums.cisco.com/docs/DOC-21110

On Thu, Jan 19, 2012 at 9:34 AM, GAURAV MADAN <gauravmadan1177_at_gmail.com> wrote:
> Thnx to all who responded ..
>
> This is a part of 6VPE thing that I am doing and I think that what I am
> doing is right .
>
> We can have a either IPV4 neighbor relationship between a PE and CE and
> advertise a IPV6 prefix from CE
> Or
> We can have a IPV6 neighbor relationship between PE and a CE and advertise
> a IPV6 prefix from CE
>
> Option B work for me .. However Option A is giving problems
>
> Any comments
>
> Thnx in advance
> Gaurav Madan
>
> On Thu, Jan 19, 2012 at 11:24 AM, GAURAV MADAN <gauravmadan1177_at_gmail.com>wrote:
>
>> Any idea experts ..?
>>
>>
>>
>> ---------- Forwarded message ----------
>> From: GAURAV MADAN <gauravmadan1177_at_gmail.com>
>> Date: Wed, Jan 18, 2012 at 10:56 PM
>> Subject: BGP for address-family ipv6 issue
>> To: Cisco certification <ccielab_at_groupstudy.com>
>>
>>
>> Hi All
>>
>> I have a very simple setup as follows . My intent is to let BGP form a
>> transport session using IPV4 reachability and then using address-family
>> IPV6 .. I am advertising route from R5 to R4 :
>>
>>
>> R4 f/1(VRF) (40.0.0.1)---------------------------- (40.0.0.2) f1/0 R5
>>
>> R4 in AS 200
>> R5 in AS 100
>>
>> R4 config
>> =========
>>
>> R4#sh run | sec router bgp
>> router bgp 200
>> no synchronization
>> bgp log-neighbor-changes
>> no auto-summary
>> !
>> address-family ipv4 vrf TEST
>> no synchronization
>> exit-address-family
>> !
>> address-family ipv6 vrf TEST
>> no synchronization
>> neighbor 40.0.0.2 remote-as 100
>> neighbor 40.0.0.2 activate
>> exit-address-family
>>
>>
>>
>> R4#sh run int f1/1
>> Building configuration...
>>
>> Current configuration : 142 bytes
>> !
>> interface FastEthernet1/1
>> vrf forwarding TEST
>> ip address 40.0.0.1 255.255.255.0
>> speed auto
>> duplex auto
>> ipv6 address 2001:54::4/64
>> end
>>
>>
>> R5 Config
>> ==========
>> R5(config)#do sh run | sec router bgp
>> router bgp 100
>> no synchronization
>> bgp log-neighbor-changes
>> neighbor 40.0.0.1 remote-as 200
>> no auto-summary
>> !
>> address-family ipv6
>> no synchronization
>> network 2001::5/128
>> neighbor 40.0.0.1 activate
>> exit-address-family
>> R5(config)#
>>
>>
>> Following is error message :
>>
>> *Jan 18 22:51:34.291: %BGP-3-NOTIFICATION: received from neighbor 40.0.0.1
>> active 2/8 (no supported AFI/SAFI) 3 bytes 000101 (timer expired)
>>
>> I feel that i have properly configured the address family to form IPV6
>> neighbors .
>> Please let me know where am i missing .
>>
>> Thanks
>> Gaurav Madan
>
>
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Received on Thu Jan 19 2012 - 10:18:44 ART