From: Habib Mandossi (habibmandossi@gmail.com)
Date: Thu Oct 11 2007 - 18:30:09 ART
DO REALLY NEED A FRAME RELAY MAP WITH THE GLOBAL IP IN IPV6?
On 10/11/07, Con Spathas <con@spathas.net> wrote:
>
> Well it all depends on the topology.
>
> If you're using point-to-point subif with the frame-relay interface-dlci
> command then you don't need any of them (same as IPv4).
>
> If you're using the physical interface or a point-to-multipoint subif with
> frame maps - then solution 1 works if it's a point to point topology.
>
> If you have HUB and spoke like (R1 <-> R2 <-> R3) with R2 as the hub then
> you'd need something like:
>
> R1:
> --
> frame map ipv6 <link local address R2> <R2 DLCI>
> frame map ipv6 <link local address R3> <R2 DLCI>
> frame map ipv6 <global address R2> <R2 DLCI> broadcast
> frame map ipv6 <global address R3> <R2 DLCI>
>
> R2:
> --
> frame map ipv6 <link local address R1> <R1 DLCI>
> frame map ipv6 <link local address R3> <R3 DLCI>
> frame map ipv6 <global address R1> <R1 DLCI> broadcast
> frame map ipv6 <global address R3> <R3 DLCI> broadcast
>
> R3:
> --
> frame map ipv6 <link local address R1> <R2 DLCI>
> frame map ipv6 <link local address R2> <R2 DLCI>
> frame map ipv6 <global address R1> <R2 DLCI>
> frame map ipv6 <global address R2> <R2 DLCI> broadcast
>
> I think that's right but I've been at it all day so my brain is a little
> fried.
> Same logic applies as for IPv4 F/R really - just have the extra config for
> the link-local addresses.
>
> That's my current understanding of it to date.
>
> gl...
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Toh
> Soon, Lim
> Sent: Thursday, 11 October 2007 18:00
> To: Gustavo Novais
> Cc: ccielab@groupstudy.com
> Subject: Re: Issue with RIPng over Frame Relay NBMA
>
> Hi Guys,
>
> Thanks for all your inputs. If the lab doesn't prohibit from configuring a
> static link-local address and I proceed to configure routers R2 and R6 as
> follows:
>
> R2
> --
> int s0/0/0
> ipv6 address 2001:1:1:26::2/64
> ipv6 address FE80::2 link-local
>
> R6
> --
> int s0/0/0
> ipv6 address 2001:1:1:26::6/64
> ipv6 address FE80::6 link-local
>
> Can you kindly verify which of the following map statements on R2 are
> correct:
>
> Solution 1
> ----------
> frame-relay map ipv6 FE80::6 106
> frame-relay map ipv6 2001:1:1:26::6 106 broadcast
>
> Or
>
> Solution 2
> ----------
> int s 0/0/0
> frame-relay map ipv6 FE80::6 106 broadcast frame-relay map ipv6
> 2001:1:1:26::6 106
>
> Or
>
> Solution 3
> ----------
> int s 0/0/0
> frame-relay map ipv6 FE80::6 106 broadcast frame-relay map ipv6
> 2001:1:1:26::6 106 broadcast
>
>
> I'm keeping the maps for global unicast addresses to ensure other routers
> have reachability to these addresses. Am I right?
>
> I'm currently using Solution 2 for the static maps and it works. I guess
> all
> 3 methods should work. But which one is the correct configuration?
>
> Appreciate further comments and guidance.
>
>
> Thank you.
>
> B.Rgds,
> Lim TS
>
>
> On 10/12/07, Gustavo Novais <gustavo.novais@novabase.pt> wrote:
> >
> > Have you tried to also map the remote link local address on the FR Map?
> >
> > Gustavo Novais
> >
> >
> >
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > Of Toh Soon, Lim
> > Sent: quinta-feira, 11 de Outubro de 2007 15:58
> > To: ccielab@groupstudy.com
> > Subject: Issue with RIPng over Frame Relay NBMA
> >
> > Hi Group,
> >
> > I'm facing an issue running RIPng over frame relay NBMA. Any help is
> > welcome. My config as follows:
> >
> > R6
> > --
> > ipv6 unicast-routing
> > !
> > interface Serial0/0/0
> > no ip address
> > encapsulation frame-relay
> > ipv6 address 2001:1:1:26::6/64
> > ipv6 rip big enable
> > frame-relay map ipv6 2001:1:1:26::2 601 broadcast no frame-relay
> > inverse-arp !
> > ipv6 router rip big
> >
> > R2
> > --
> > interface Loopback1
> > no ip address
> > ipv6 address 2000:1:2:2::2/64
> > ipv6 rip big enable
> > !
> > interface Serial0/0/0
> > no ip address
> > encapsulation frame-relay
> > ipv6 address 2001:1:1:26::2/64
> > ipv6 rip big enable
> > frame-relay map ipv6 2001:1:1:26::6 106 broadcast !
> > ipv6 router rip big
> >
> > Verification:
> > -------------
> > R2#sh ipv int s 0/0/0
> > Serial0/0/0 is up, line protocol is up
> > IPv6 is enabled, link-local address is FE80::21B:54FF:FECE:2072 Global
> > unicast address(es):
> > 2001:1:1:26::2, subnet is 2001:1:1:26::/64
> >
> > R6#pi FE80::21B:54FF:FECE:2072
> > Output Interface: serial0/0/0
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to FE80::21B:54FF:FECE:2072, timeout is
> > 2
> > seconds:
> > Packet sent with a source address of FE80::21B:54FF:FEBC:5EEE .....
> > Success rate is 0 percent (0/5)
> >
> > R6#pi 2001:1:1:26::2
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 2001:1:1:26::2, timeout is 2 seconds:
> > !!!!!
> > Success rate is 100 percent (5/5), round-trip min/avg/max = 56/56/56
> > ms
> >
> > R6#sh ipv ro ri
> > R 2000:1:2:2::/64 [120/2]
> > via FE80::21B:54FF:FECE:2072, Serial0/0/0
> >
> > R6#pi 2000:1:2:2::2
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 2000:1:2:2::2, timeout is 2 seconds:
> > .....
> > Success rate is 0 percent (0/5)
> >
> >
> > (1) I'm not able to ping to R2's link-local address from R6 but can
> > ping its global unicast address.
> > (2) R6 learns R2's loopback1 subnet address via RIP but can't ping
> > R2's
> > loopback1 address.
> > (3) I notice the next-hop address of the RIP route is R2's link-local
> > address. I guess the reason why R6 can't ping R2's loopback1 has to do
> > with the issue of not being able to ping R2's link-local address.
> > (4) I have no issue if I re-configured the frame relay to p2p
> > subinterfaces.
> >
> > Did I miss anything in my config? Reloading both routers doesn't help.
> > Please advise.
> >
> >
> > Thank you.
> >
> > B.Rgds,
> > Lim TS
> >
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