From: Duongla (duongla@vnn.vn)
Date: Mon Sep 26 2005 - 23:53:52 GMT-3
On point-to-point subinterface, you dont have to map and you cannot map.
According to your show output, R4 does know how to get to the link-local
address FE80::20B:60FF:FE51:AC08 through Serial0/0.14, you can test by ping
it.
The problem is:
- R4 does not learn the NBMA subnet between R1 and R2,R3
- R2 and R3 do not learn the subnet between R1 and R4
- The reason is R1 does not redistribute its connected subnets during
redistributing between RIP and OSPF
You can correct by adding redistribute connected :
On router r1:
> ipv6 router ospf 1
> redistribute connected metric 1000
> !
> ipv6 router rip r1r4
> redistribute connected metric 7
HTH
Duongla
----- Original Message -----
From: "Loi, Choon Ho" <ChoonHo.Loi@getronics.com>
To: "Duongla" <duongla@vnn.vn>; <ccielab@groupstudy.com>
Sent: Monday, September 26, 2005 11:56 PM
Subject: RE: IPV6 redistribution issue
> Attached with the sh ipv6 route from r1 and r4.
> R4 does not know how to get to the link-local address
> FE80::20B:60FF:FE51:AC08.
> Since r4 to r1 is a point-to-point interface, I can't map it to the
> interface dlci.
> Inverse-arp doesn't seems like working in this case.
>
> Sh frame-relay map:
> r1#sh frame map
> Serial1/0.14 (up): point-to-point dlci, dlci 104(0x68,0x1880), broadcast
> status defined, active
>
> r4#sh frame map
> Serial0/0.14 (up): point-to-point dlci, dlci 401(0x191,0x6410),
> broadcast
> status defined, active
>
> R1 ip address:
> Serial1/0.14 [up/up]
> FE80::20B:60FF:FE51:AC08
> 2001:24:24:0:20B:60FF:FE51:AC08
> ------------------------------------------------------------------------
> ------
>
> r1#sh ipv6 route 2001:24:24::/64
> IPv6 Routing Table - 11 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 2001:24:24::/64 [0/0]
> via ::, Serial1/0.14
>
> r4#sh ipv6 rip database
> RIP process "r1r4", local RIB
> 2001:24:24::/64, metric 2
> Serial0/0.14/FE80::20B:60FF:FE51:AC08, expires in 170 secs
> 2001:2222:2222:0:203:32FF:FE95:6C00/128, metric 8, installed
> Serial0/0.14/FE80::20B:60FF:FE51:AC08, expires in 170 secs
> 2001:3333:3333:0:260:83FF:FEF3:F000/128, metric 8, installed
> Serial0/0.14/FE80::20B:60FF:FE51:AC08, expires in 170 secs
>
>
> ------------------------------------------------------------------------
> --------
>
>
> r4#sh ipv6 route
> IPv6 Routing Table - 8 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 2001:24:24::/64 [0/0]
> via ::, Serial0/0.14
> L 2001:24:24:0:260:83FF:FE39:3E21/128 [0/0]
> via ::, Serial0/0.14
> R 2001:2222:2222:0:203:32FF:FE95:6C00/128 [120/8]
> via FE80::20B:60FF:FE51:AC08, Serial0/0.14
> R 2001:3333:3333:0:260:83FF:FEF3:F000/128 [120/8]
> via FE80::20B:60FF:FE51:AC08, Serial0/0.14
> C 2001:4444:4444::/64 [0/0]
> via ::, Loopback0
> L 2001:4444:4444:0:260:83FF:FE39:3E21/128 [0/0]
> via ::, Loopback0
> L FE80::/10 [0/0]
> via ::, Null0
> L FF00::/8 [0/0]
> via ::, Null0
>
> r1#sh ipv6 route
> IPv6 Routing Table - 11 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 2001:24:24::/64 [0/0]
> via ::, Serial1/0.14
> L 2001:24:24:0:20B:60FF:FE51:AC08/128 [0/0]
> via ::, Serial1/0.14
> C 2001:256:256::/64 [0/0]
> via ::, Serial1/0.123
> L 2001:256:256:0:20B:60FF:FE51:AC08/128 [0/0]
> via ::, Serial1/0.123
> C 2001:1111:1111::/64 [0/0]
> via ::, Loopback0
> L 2001:1111:1111:0:20B:60FF:FE51:AC08/128 [0/0]
> via ::, Loopback0
> O 2001:2222:2222:0:203:32FF:FE95:6C00/128 [110/64]
> via FE80::203:32FF:FE95:6C00, Serial1/0.123
> O 2001:3333:3333:0:260:83FF:FEF3:F000/128 [110/64]
> via FE80::260:83FF:FEF3:F000, Serial1/0.123
> R 2001:4444:4444::/64 [120/2]
> via FE80::260:83FF:FE39:3E21, Serial1/0.14
> L FE80::/10 [0/0]
> via ::, Null0
> L FF00::/8 [0/0]
> via ::, Null0
>
>
> Redistribution on router r1:
>
> ipv6 router ospf 1
> router-id 1.1.1.1
> log-adjacency-changes
> passive-interface default
> no passive-interface Serial1/0.123
> redistribute rip r1r4 metric 1000
> !
> ipv6 router rip r1r4
> redistribute ospf 1 metric 7
>
>
>
> -----Original Message-----
> From: Duongla [mailto:duongla@vnn.vn]
> Sent: Tuesday, September 27, 2005 12:18 AM
> To: Loi, Choon Ho; ccielab@groupstudy.com
> Subject: Re: IPV6 redistribution issue
>
> Hi,
>
> Can you double-check if R4 has route to NBMA subnet ?
> When you reditribute from OSPF to RIP on R1 for example, R1 will not
> redistribute its directly connected subnet on NBMA, so R4 has just
> routes to loopback subnet of R2,R3. The same thing happens when
> redistributing from RIP to OSPF If you ping R2 loopback from R4, the
> icmp echo will reach R2 but R2 does not know how to come back.
>
> Its my idea. Pls check if this helps
> Duongla
>
> ----- Original Message -----
> From: "Loi, Choon Ho" <ChoonHo.Loi@getronics.com>
> To: <ccielab@groupstudy.com>
> Sent: Monday, September 26, 2005 4:34 PM
> Subject: IPV6 redistribution issue
>
>
> > Hi,
> > I had a problem in redistributing Ipv6 RIP to OSPF & vice-versa.
> > The route is successfully redistributed but its not reachable.
> > Here is my setup:
> >
> > R1(Hub)-----FR P-2-P------R4
> > \
> > \FR NBMA
> > \---------(Spoke)R2
> > \
> > \-------(Spoke)R3
> >
> >
> > R1-R2-R3 - OSPF
> > R1-R4 - RIP
> >
> > Loopback from R2 & R3 was distributed to R4. But, R4 can not reach R2
> > and R3.
> > I can't do a manual mapping due to the p2p setting between R1 and R4.
> > How can I make R4 reachable to R2 & R3
> >
> > Thanks.
> >
> >
> _______________________________________________________________________
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>
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