From: Heiko Liedtke (heiko.liedtke@gmx.net)
Date: Fri Nov 03 2006 - 12:11:16 ART
hi pierre-alex,
thanks for your excelent help! i was able to lab the thing out
on myself. without the mapping of the link-local address, i am not able
to reach any of
the rip learned destinations.
now i see the point with the mapping statements in ipv6!
Great help!
heiko
Pierre-Alex GUANEL schrieb:
>Hi Heiko,
>
>Here is an experiment that may answer some of your question(s):
>
>-----------
>
>here is the setup
>
>!r2
>
>int ser 0/0
>frame map ipv6 2001:12::1 201 br
>ipv6 addr 2001:12::2/64
>ipv6 rip lab13 enable
>
>interface FastEthernet0/0
> ipv6 address 2001:CC1E:1:2::/64 eui-64
> ipv6 rip lab13 enable
>
>!r1
>
>ipv6 routing
>
>int ser 0/0
>frame map ipv6 2001:12::2 102 br
>ipv6 addr 2001:12::1/64
>ipv6 rip lab13 enable
>
>-------------------
>
>
>! rip multicast is sent using FE80:
>
>
>Rack1R1#
>*Mar 1 00:31:45.090: RIPng: Sending multicast update on Serial0/0 for lab13
>*Mar 1 00:31:45.090: src=FE80::2D0:58FF:FE58:D960
>*Mar 1 00:31:45.090: dst=FF02::9 (Serial0/0)
>*Mar 1 00:31:45.090: sport=521, dport=521, length=32
>*Mar 1 00:31:45.090: command=2, version=1, mbz=0, #rte=1
>*Mar 1 00:31:45.090: tag=0, metric=1, prefix=2001:12::/64
>
>
>Rack1R2# 1 00:34:12.931: tag=0, metric=1,
>prefix=2001:CC1E:1:23::2/127
>*Mar 1 00:34:12.935: RIPng: Sending multicast update on FastEthernet0/0 for
>lab13
>*Mar 1 00:34:12.935: src=FE80::206:D7FF:FE27:1E0
>*Mar 1 00:34:12.935: dst=FF02::9 (FastEthernet0/0)
>*Mar 1 00:34:12.935: sport=521, dport=521, length=72
>*Mar 1 00:34:12.935: command=2, version=1, mbz=0, #rte=3
>*Mar 1 00:34:12.935: tag=0, metric=1, prefix=2001:12::/64
>*Mar 1 00:34:12.935: tag=0, metric=1, prefix=2001:CC1E:1:2::/64
>*Mar 1 00:34:12.935: tag=0, metric=1, prefix=2001:CC1E:1:23::2/127
>Rack1R2#
>
>----------
>
>! The rip multicast from r2 to r1 (and vice versa) because of the broadcast
>statement on the
>frame-relay map. But notice that the next hop to the ipv6 rip learned routes
>is
>the FE80 address.
>
>
>Rack1R1#sh ipv6 route
>IPv6 Routing Table - 6 entries
>Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
> U - Per-user Static route
> I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
> O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
> ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
>C 2001:12::/64 [0/0]
> via ::, Serial0/0
>L 2001:12::1/128 [0/0]
> via ::, Serial0/0
>R 2001:CC1E:1:2::/64 [120/2]
> via FE80::206:D7FF:FE27:1E0, Serial0/0
>R 2001:CC1E:1:23::2/127 [120/2]
> via FE80::206:D7FF:FE27:1E0, Serial0/0
>L FE80::/10 [0/0]
> via ::, Null0
>L FF00::/8 [0/0]
> via ::, Null0
>
>
>---------
>
>
>!When I send a ping, the ping fails, because the packet is sent to the next
>hop address
>in FE80 which does not have a mapping frame-relay.
>
>
>
>
>Rack1R1#ping ipv6 2001:CC1E:1:23::2
>
>Type escape sequence to abort.
>Sending 5, 100-byte ICMP Echos to 2001:CC1E:1:23::2, timeout is 2 seconds:
>
>*Mar 1 00:37:38.293: Serial0/0:Encaps failed--no map entry link 79(IPV6).
>*Mar 1 00:37:40.296: Serial0/0:Encaps failed--no map entry link 79(IPV6).
>*Mar 1 00:37:42.300: Serial0/0:Encaps failed--no map entry link 79(IPV6).
>*Mar 1 00:37:44.303: Serial0/0:Encaps failed--no map entry link 79(IPV6).
>*Mar 1 00:37:46.302: Serial0/0:Encaps failed--no map entry link 79(IPV6).
>Success rate is 0 percent (0/5)
>
>
>
>---------------
>
>
>! Now I put a mapping on R1 and I will be able to ping succeffully as the
>packet
>are sent on the dlci, amd R2 as a return path to the 2001: address which is
>the source address of the packets.
>
>
>Rack1R1(config-if)#frame map ipv6 FE80::206:D7FF:FE27:1E0 102 br
>
>Rack1R1#ping ipv6 2001:CC1E:1:23::2
>
>
>Rack1R1#
>*Mar 1 00:40:47.175: Serial0/0(o): dlci 102(0x1861), pkt type 0x86DD(IPV6),
>datagramsize 10
>4
>*Mar 1 00:40:47.179: Serial0/0(i): dlci 102(0x1861), pkt type 0x86DD,
>datagramsize 104
>*Mar 1 00:40:47.183: Serial0/0(o): dlci 102(0x1861), pkt type 0x86DD(IPV6),
>datagramsize 10
>4
>*Mar 1 00:40:47.187: Serial0/0(i): dlci 102(0x1861), pkt type 0x86DD,
>datagramsize 104
>*Mar 1 00:40:47.187: Serial0/0(o): dlci 102(0x1861), pkt type 0x86DD(IPV6),
>datagramsize 10
>4
>
>
>Rack1R2#sh loggin
>
>*Mar 1 00:42:46.507: ICMPv6: Received ICMPv6 packet from 2001:12::1, type
>128
>*Mar 1 00:42:46.507: ICMPv6: Received echo request from 2001:12::1
>*Mar 1 00:42:46.507: ICMPv6: Sending echo reply to 2001:12::1
>*Mar 1 00:42:46.515: ICMPv6: Received ICMPv6 packet from 2001:12::1, type
>128
>*Mar 1 00:42:46.515: ICMPv6: Received echo request from 2001:12::1
>*Mar 1 00:42:46.515: ICMPv6: Sending echo reply to 2001:12::1
>*Mar 1 00:42:46.523: ICMPv6: Received ICMPv6 packet from 2001:12::1, type
>128
>*Mar 1 00:42:46.523: ICMPv6: Received echo reques
>
>
>
>-----
>
>! To be able to ping from both side R1 and R2, you need to have a FE80
>mapping on R2
>too
>
>For a best practice, I would put the broadcast statement only one one frame
>map.
>I would put it on the FE80 address, since all outgoing traffic is sent to to
>this address
>and not put broadcast statement on the 2001: address.
>
>
>HTH
>
>Pierre-Alex
>
>
>----- Original Message -----
>From: "Scott Morris" <swm@emanon.com>
>To: "'Heiko Liedtke'" <heiko.liedtke@gmx.net>; <ccielab@groupstudy.com>
>Sent: Thursday, November 02, 2006 9:09 PM
>Subject: RE: frame-relay map and IPV6?
>
>
>
>
>>You need to map whatever IPv6 addresses that you need to reach! In short,
>>if you aren't going to both mapping all the addresses, why configure them
>>
>>
>on
>
>
>>the interface? Decoration?
>>
>>Yup, map 'em all.
>>
>>HTH,
>>
>>
>>Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
>>#153, CISSP, et al.
>>CCSI/JNCI-M/JNCI-J
>>IPExpert VP - Curriculum Development
>>IPExpert Sr. Technical Instructor
>>smorris@ipexpert.com
>>http://www.ipexpert.com
>>
>>
>>
>>-----Original Message-----
>>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>>Heiko Liedtke
>>Sent: Thursday, November 02, 2006 1:48 PM
>>To: ccielab@groupstudy.com
>>Subject: frame-relay map and IPV6?
>>
>>Dear group,
>>
>>I have a question about frame-relay map statements and IPv6.
>>
>>If I am asked to configure IPv6 over a frame-relay cloud, do I have to
>>configure only the frame-relay map statements for site-local addresses or
>>
>>
>do
>
>
>>I have to configure mapping statements for link-local addresses as well?
>>
>>
>(if
>
>
>>nothing special mentioned in the question)
>>
>>In short: mapping statements only for the unique addresses or for unique
>>
>>
>and
>
>
>>link-local?
>>
>>heiko
>>
>>_______________________________________________________________________
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>>
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>>
>>
>
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