IOS next-hop trouble

[Pim van Pelt]

On Tue, Apr 02, 2002 at 09:35:39PM +0800, Ethern Lin wrote:
| Dear Pekka,
| 
| I have an dirty method to solve this. You can use route-map in
| BGP route out.  Like below:
| 
| neighbor 2001:7F8:1::A500:3265:2 route-map ToAMXIX out
| 
| route-map ToAMXIX permit 10
|  set ip next-hop ##your router ipv4 ip##
| !
| 
| Maybe work in your system.
Ethern,

Thans for the remark, however I do not think it helps much. It is not
the Cisco who is announcing 0.0.0.0 as nexthop, but the Juniper. So in
fact, the correct thing would be that AS3265 fixes his sessions with 
others to announce no-nexthop for IPv4 (or his shared medium address if 
that fails).

I spoke with Juniper folk at a meeting yesterday and it has been fixed
in 5.2, which the above 2001:7F8:1::A500:3265:1 router does not run
(yet).

I am closing this matter as it appears to be a known bug.

groet,
Pim

| 
| cheers,
| 
| Ethern
| 
| 
| ----- Original Message -----
| From: "Jan Oravec" <wsx@wsx6.net>
| To: "Pekka Savola" <pekkas@netcore.fi>
| Cc: <6bone@ISI.EDU>
| Sent: Tuesday, April 02, 2002 6:14 PM
| Subject: Re: IOS next-hop trouble
| 
| 
| > On Fri, Mar 29, 2002 at 10:38:28AM +0200, Pekka Savola wrote:
| > > On Fri, 29 Mar 2002, Pim van Pelt wrote:
| > > > Dear admin friends,
| > > >
| > > > Recently I engaged in another IPv6 adventure at some ISP. We are now
| > > > running IOS 12.2-8.5.T on a c7206VXR.
| > > >
| > > > The logs state:
| > > > Mar 28 22:47:36 fe2-0.4.sara.ams-ix.network.bit.nl 2288: 3d12h:
| > > > %BGP-6-NEXTHOP: Invalid next hop (0.0.0.0) received from
| > > > 2001:7F8:1::A500:3265:1: martian next hop
| > > >
| > > > for our peerings the AMS-IX. How can I solve this. Clearly IPv6
| > > > BGP has nothing to do with the IPv4 nexthop so the Juniper at :3265:1
| > > > leaves it empty. Why does my box complain ?
| > >
| > > Are you peering with some box running Zebra?  I noticed this happened
| with
| > > zebra when they didn't run 'zebra -d' before starting 'bgpd -d'.
| >
| > The bug has been fixed several months ago. zebra-xs26
| (http://www.xs26.net/zebra) has bugfix included, I believe Kunihiro applied
| the patch to official zebra CVS.
| >
| > --
| > Jan Oravec
| > project coordinator
| > XS26 - 'Access to IPv6'
| > http://www.xs26.net
| > jan.oravec@xs26.net
| >
| 

-- 
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Pim van Pelt                 Email: pim@ipng.nl
http://www.ipng.nl/             IPv6 Deployment
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