nd6_na_input: duplicate IP6 address OpenBSD i386 4.7

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nd6_na_input: duplicate IP6 address OpenBSD i386 4.7

mottycruz
I have two gateways carp between them, recently I notice they bounced back
between them with the following erro:
Jul 26 09:41:11 AN1 /bsd: carp0: state transition: MASTER -> BACKUP

Jul 26 09:41:11 AN1 /bsd: carp3: state transition: MASTER -> BACKUP

Jul 26 09:41:11 AN1 /bsd: carp2: state transition: MASTER -> BACKUP

Jul 26 09:41:11 AN1 /bsd: nd6_na_input: duplicate IP6 address fe80::9::0200

Jul 26 09:41:11 AN1 /bsd: nd6_na_input: duplicate IP6 address fe80::c::0200

Jul 26 09:41:11 AN1 /bsd: nd6_na_input: duplicate IP6 address fe80::b::0200

 

Any ideas?

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Re: nd6_na_input: duplicate IP6 address OpenBSD i386 4.7

mottycruz
I failed to mentioned CARP interfaces are only IPv4 not IPv6 also, I don't
have vlan. Please help! I can't find any references on how to fix this issue
on google.

 

Thanks,



 

From: Motty [mailto:[hidden email]]
Sent: Tuesday, July 26, 2016 10:12 AM
To: '[hidden email]'
Subject: nd6_na_input: duplicate IP6 address OpenBSD i386 4.7

 

I have two gateways carp between them, recently I notice they bounced back
between them with the following erro:
Jul 26 09:41:11 AN1 /bsd: carp0: state transition: MASTER -> BACKUP

Jul 26 09:41:11 AN1 /bsd: carp3: state transition: MASTER -> BACKUP

Jul 26 09:41:11 AN1 /bsd: carp2: state transition: MASTER -> BACKUP

Jul 26 09:41:11 AN1 /bsd: nd6_na_input: duplicate IP6 address fe80::9::0200

Jul 26 09:41:11 AN1 /bsd: nd6_na_input: duplicate IP6 address fe80::c::0200

Jul 26 09:41:11 AN1 /bsd: nd6_na_input: duplicate IP6 address fe80::b::0200

 

Any ideas?

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Re: nd6_na_input: duplicate IP6 address OpenBSD i386 4.7

Philip Guenther-2
In reply to this post by mottycruz
On Tue, Jul 26, 2016 at 10:11 AM, Motty <[hidden email]> wrote:
> I have two gateways carp between them, recently I notice they bounced back
> between them with the following erro:

OpenBSD 4.7?  Seriously?  That's been off the supported version list
for *five years*.

$ grep -ic carp plus{4[89],5}*
plus48.html:1
plus49.html:3
plus50.html:6
plus51.html:10
plus52.html:1
plus53.html:1
plus54.html:8
plus55.html:2
plus56.html:1
plus57.html:4
plus58.html:6
plus59.html:7
$

Upgrade, or rather: set up new hosts running 6.0 and switch to them.


Philip Guenther