I don’t think I’ve ever seen that error either, running a couple of MT with 
static IPv6 allocations, and about 100 clients on DHCPv6.

From: Af [mailto:[email protected]] On Behalf Of John Babineaux
Sent: Wednesday, June 8, 2016 2:32 PM
To: [email protected]
Subject: Re: [AFMUG] IPv6 fun....

All I have is the IPv6 address configured

From: Af [mailto:[email protected]] On Behalf Of Faisal Imtiaz
Sent: Wednesday, June 08, 2016 3:23 PM
To: [email protected]<mailto:[email protected]>
Subject: Re: [AFMUG] IPv6 fun....

can u provide your config snippet ?

FYI, no such issues with MT, we have quiet a few ipv6 peers running on a 
multiple units.

Regards.

Faisal Imtiaz
Snappy Internet & Telecom
7266 SW 48 Street
Miami, FL 33155
Tel: 305 663 5518 x 232

Help-desk: (305)663-5518 Option 2 or Email: 
[email protected]<mailto:[email protected]>

________________________________
From: "John Babineaux" 
<[email protected]<mailto:[email protected]>>
To: [email protected]<mailto:[email protected]>
Sent: Wednesday, June 8, 2016 3:44:57 PM
Subject: [AFMUG] IPv6 fun....
I am just starting an IPv6 connection with one of our upstream providers.
I have a mikrotik router that they are connecting to on a fibre sfp port with 
ipv4 working.
They gave me an IP address and I added it to the port.  I am getting a 
“duplicate address detected” error on the IP.
They swear it’s not a duplicate and Mikrotik tells me they use standards.  I 
don’t know what to do at this point to get it right.
I can unplug the port, disable then enable the port, and plug it in and it 
works….. but if the router reboots or if I disable the port for any reason we 
get the same error.
I just lit up a second IPv6 connection with the same provider.  It’s on a 
different network and it’s doing the same error.

Does anyone know of a problem with Mikrotik and IPv6 or is my provider not 
configuring something correctly.
I also don’t have a loopback on that interface because I read somewhere that it 
could cause that issue.


____________________________________
John Babineaux
System Administrator
REACH4 Communications | Website: www.REACH4Com.com<http://www.reach4com.com/>
Phone: 337-783-3436 x105 | Email: 
[email protected]<mailto:[email protected]>
927 N Parkerson Ave, Crowley, LA 70526



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