From: Pierre-Alex GUANEL (paguanel@hotmail.com)
Date: Fri Nov 03 2006 - 17:57:46 ART
Heiko, you are welcome!
Now try to predict / explain if a mapping is necessary in the following
cases:
- frame-relay point-to-point interface
- serial link (hdlc)
- ethernet segement
Regards,
Pierre-Alex
----- Original Message -----
From: "Heiko Liedtke" <heiko.liedtke@gmx.net>
To: "Pierre-Alex GUANEL" <paguanel@hotmail.com>
Cc: "Scott Morris" <swm@emanon.com>; <ccielab@groupstudy.com>
Sent: Friday, November 03, 2006 4:11 PM
Subject: Re: frame-relay map and IPV6?
> 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
> >>
> >>_______________________________________________________________________
> >>Subscription information may be found at:
> >>http://www.groupstudy.com/list/CCIELab.html
> >>
> >>_______________________________________________________________________
> >>Subscription information may be found at:
> >>http://www.groupstudy.com/list/CCIELab.html
> >>
> >>
> >
> >_______________________________________________________________________
> >Subscription information may be found at:
> >http://www.groupstudy.com/list/CCIELab.html
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