From: Pierre-Alex GUANEL (paguanel@hotmail.com)
Date: Fri Nov 03 2006 - 03:15:23 ART
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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