RE: BGP ipv6 peering over frame-relay using link-local

From: Gustavo Novais (gustavo.novais@novabase.pt)
Date: Wed Nov 23 2005 - 08:18:01 GMT-3


Hello Nguyen

You are right. At the moment I wrote the email I was worried about the
fact that the TCP session between neighbours didn't even come up. As you
know the route-map has nothing to do with it.

After I managed to get the peering up, I corrected the route-map and all
worked fine.

Thank you for correcting.

Gustavo Novais

________________________________

From: Nguyen Hong Son [mailto:nguyenhongsontiger@yahoo.com]
Sent: quarta-feira, 23 de Novembro de 2005 2:35
To: Gustavo Novais; West, Karl R (IT); James Matrisciano; GS
Subject: RE: BGP ipv6 peering over frame-relay using link-local
addresses

Hi Gustavo Novais.

You are wrong in configure next-hop ipv6 add.

Let say R1 as example If you use route-map out, you should use next hop
ipv6 add is the site-local of R1 (FEC0::1) if you use route-map in, you
should use next hop ipv6 add is the site-local of R3 (FEC0::3).

You can verify this in the sample Lab 1 of Doit version II preparing for
candidates after 1 Jan 2006 of Netmasterclass.

Best Regards

Gustavo Novais <gustavo.novais@novabase.pt> wrote:

        Hi again!

        When I do a debug ipv6 packet and deb bgp ipv6
        I see that somehow the router R1 is sending packets not to the
Serial0/0 but to the FastEthernet (opposite side of R3).

        Does any one know of any restriction on using link local with
fram-relay?
        When I used AGUA addresses directly, all went fine.

        Rack1R1#deb ipv6 packet
        Rack1R1#deb ipv6 packet
        IPv6 unicast packet debugging is on
        Rack1R1#deb bgp ipv6
        BGP debugging is on
        Rack1R1#
        *Mar 2 05:22:03.966: BGP: FE80::20B:46FF:FE86:3900 open active,
local address FE80::20B:FDFF:FE25:13E0
        *Mar 2 05:22:03.966: IPV6: source FE80::20B:FDFF:FE25:13E0
(local)
        *Mar 2 05:22:03.966: dest FE80::20B:46FF:FE86:3900
(FastEthernet0/0)
        *Mar 2 05:22:03.966: traffic class 192, flow 0x0, len 64+0, prot
6, hops 64, originating
        *Mar 2 05:22:03.970: IPV6: source FE80::20B:FDFF:FE25:13E0
(local)
        *Mar 2 05:22:03.970: dest FF02::1:FF86:3900 (FastEthernet0/0)
        *Mar 2 05:22:03.970: traffic class 224, flow 0x0, len 72+8, prot
58, hops 255, originating
        *Mar 2 05:22:03.970: IPv6: Sending on FastEthernet0/0
        *Mar 2 05:22:03.970: IPv6: Encapsulation failed
        Rack1R1#
        *Mar 2 05:22:03.970: IPv6: Resolving next hop
FE80::20B:46FF:FE86:3900 on interface FastEthernet0/0
        *Mar 2 05:22:04.971: IPV6: source FE80::20B:FDFF:FE25:13E0
(local)
        *Mar 2 05:22:04.971: dest FF02::1:FF86:3900 (FastEthernet0/0)
        *Mar 2 05:22:04.971: traffic class 224, flow 0x0, len 72+8, prot
58, hops 255, originating
        *Mar 2 05:22:04.971: IPv6: Sending on FastEthernet0/0

        Gustavo Novais

        -----Original Message-----
        From: West, Karl R (IT) [mailto:Karl.West@morganstanley.com]
        Sent: terga-feira, 22 de Novembro de 2005 22:47
        To: Gustavo Novais; James Matrisciano; GS
        Subject: RE: BGP ipv6 peering over frame-relay using link-local
addresses

        Can we see the BGP part of your config?

        -----Original Message-----
        From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf Of
        Gustavo Novais
        Sent: Tuesday, November 22, 2005 5:31 PM
        To: James Matrisciano; GS
        Subject: RE: BGP ipv6 peering over frame-relay using link-local
        addresses

        Yes,
        I should have shown sh ipv6 interfaces

        R1
        Serial0/0 is up, line protocol is up
        IPv6 is enabled, link-local address is FE80::20B:FDFF:FE25:13E0
        Global unicast address(es):
        FEC0::1, subnet is FEC0::/120

        R3
        Serial0/1 is up, line protocol is up
        IPv6 is enabled, link-local address is FE80::20B:46FF:FE86:3900
        Global unicast address(es):
        FEC0::3, subnet is FEC0::/120

        I'm also able to ping one from the other.

        Rack1R1#ping FE80::20B:46FF:FE86:3900
        Output Interface: Serial0/0
        Type escape sequence to abort.
        Sending 5, 100-byte ICMP Echos to FE80::20B:46FF:FE86:3900,
timeout is 2
        seconds:
        !!!!!
        Success rate is 100 percent (5/5), round-trip min/avg/max =
16/16/16 ms
        Rack1R1#

        Gustavo Novais

        -----Original Message-----
        From: James Matrisciano [mailto:jmatrisciano@kenttech.com]
        Sent: terga-feira, 22 de Novembro de 2005 22:27
        To: Gustavo Novais; GS
        Subject: RE: BGP ipv6 peering over frame-relay using link-local
        addresses

        Is the link local address that you are mapping your frame to the
same
        link-local address of that of the local interface?

        Sh ipv6 interface serial 0/0

        Probably so, but just have to ask.

        -----Original Message-----
        From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf Of
        Gustavo Novais
        Sent: Tuesday, November 22, 2005 5:20 PM
        To: GS
        Subject: BGP ipv6 peering over frame-relay using link-local
addresses

        Hello

        There is an example on Ipv6 documentation on doc CD on which
they
        exemplify peering between two ipv6 bgp peers using link local
addresses.

        I'm trying to do it on top of a frame-relay connection.
Nevertheless,
        the peering never comes up. I've checked my FR maps, I've
checked
        everything but it still will no work.

        I'm asking the group if there's anything wrong I'm doing.

        R1 Config

        Current configuration : 421 bytes

        !

        interface Serial0/0

        ip address 162.1.13.1 255.255.255.0

        ip pim sparse-dense-mode

        encapsulation frame-relay

        ipv6 address FEC0::1/120

        no fair-queue

        clock rate 256000

        frame-relay traffic-shaping

        frame-relay map ipv6 FEC0::3 131

        frame-relay map ipv6 FE80::20B:46FF:FE86:3900 131 broadcast

        frame-relay map ip 162.1.13.3 131 broadcast

        frame-relay interface-dlci 131

        class QoS9.1

        no frame-relay inverse-arp

        end

        Rack1R1# sh run | b r b

        router bgp 200

        no synchronization

        bgp router-id 150.1.1.1

        bgp log-neighbor-changes

        neighbor 162.1.13.3 remote-as 300

        neighbor 192.10.1.6 remote-as 200

        neighbor 192.10.1.254 remote-as 254

        neighbor 192.10.1.254 password CISCO

        neighbor FE80::20B:46FF:FE86:3900 remote-as 300

        neighbor FE80::20B:46FF:FE86:3900 update-source Serial0/0

        no auto-summary

        !

        address-family ipv6

        neighbor FE80::20B:46FF:FE86:3900 activate

        neighbor FE80::20B:46FF:FE86:3900 route-map NH out

        network 2001:CC1E:0:162::/64

        exit-address-family

        !

        route-map NH permit 10

        set ipv6 next-hop FEC0::3

        !

        R3 Config

        Rack1R3#sh run int ser0/1

        Building configuration...

        Current configuration : 330 bytes

        !

        interface Serial0/1

        ip address 162.1.13.3 255.255.255.0

        ip pim sparse-dense-mode

        encapsulation frame-relay

        ipv6 address FEC0::3/120

        clock rate 256000

        frame-relay map ipv6 FE80::20B:FDFF:FE25:13E0 311 broadcast

        frame-relay map ip 162.1.13.1 311 broadcast

        frame-relay map ipv6 FEC0::1 311

        no frame-relay inverse-arp

        end

        Rack1R3#sh run | b r b

        router bgp 300

        no synchronization

        bgp router-id 150.1.3.3

        bgp log-neighbor-changes

        neighbor 162.1.0.2 remote-as 300

        neighbor 162.1.0.4 remote-as 100

        neighbor 162.1.0.4 remove-private-AS

        neighbor 162.1.13.1 remote-as 200

        neighbor 162.1.13.1 remove-private-AS

        neighbor 162.1.38.8 remote-as 65002

        neighbor FE80::20B:FDFF:FE25:13E0 remote-as 200

        neighbor FE80::20B:FDFF:FE25:13E0 update-source Serial0/1

        no auto-summary

        !

        address-family ipv6

        neighbor FE80::20B:FDFF:FE25:13E0 activate

        neighbor FE80::20B:FDFF:FE25:13E0 route-map NEXTHOP out

        network 2001:CC1E:0:3::/64

        exit-address-family

        !

        route-map NEXTHOP permit 10

        set ipv6 next-hop FEC0::1

        Any help will be appreciated

        Gustavo Novais



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