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09-07-2015 11:14 PM
09-07-2015 11:14 PM
how disable ipv6 ..?
Hello
i want to ask is there a way to disable ipv6 broadcast in switch 8212 becouse there some computer is broadcast ipv6 becouse bug in network card, so if there a way to disable from the core switch is better.
thank you
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09-09-2015 09:48 AM
09-09-2015 09:48 AM
Re: how disable ipv6 ..?
You want to just drop all switched IPv6 packets? You could use an ACL to do that:
ipv6 access-list "drop-all-v6"
10 deny ipv6 ::/0 ::/0
exit
Then apply it to the ingress VLAN or port:
vlan 1
ipv6 access-group "drop-all-v6" vlan
-or-
interface A1
ipv6 access-group "drop-all-v6" in
exit
Either will drop all IPv6 packets on ingress of that VLAN or port. You could be more specific on the source IPv6 address if you just want to drop packets from that particular host.
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09-15-2015 10:39 PM
09-15-2015 10:39 PM
Re: how disable ipv6 ..?
Hello Michael Patmon
sorry for slow respone i was busy i try both way but not work.
thank you
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09-17-2015 08:36 PM
09-17-2015 08:36 PM
Re: how disable ipv6 ..?
That should drop all IPv6 packets ingressing the 8200. What is the IPv6 packet exactly?
Other option would be to put the misbehaving host in its own VLAN.
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09-20-2015 12:53 AM
09-20-2015 12:53 AM
Re: how disable ipv6 ..?
Hello
it coming from HP computer host we have large number for the same module and this has problem in network card it need update but you can see the problem in this link:
https://communities.intel.com/thread/48051
we have many host in many vlan it will take long time to location every one and update the drive network card, i want know if there a way to stop it from Core Switch.
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09-22-2015 12:53 PM
09-22-2015 12:53 PM
Re: how disable ipv6 ..?
Ok, so it's an MLD packet being flooded. The ACL examples I gave you should drop that packet, I verified that it does in the lab.
If applying the ACL to the VLAN make sure you use the "vlan" keyword when applying. In/out only applies to packets the 8200 is routing, which is not the case here.
You could also drop all packets with that DA MAC via a multicast filter, for example:
HP-8212zl(config)# filter multicast 3333000000fb drop all
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09-28-2015 01:12 AM
09-28-2015 01:12 AM
Re: how disable ipv6 ..?
Hello
yes i use the "vlan" keyword but still the packet not stop in Wireshark, about
HP-8212zl(config)# filter multicast 3333000000fb drop all
there more than 200 pc can't use it
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09-30-2015 08:21 PM
09-30-2015 08:21 PM
Re: how disable ipv6 ..?
The ACL and filter should drop those packets on ingress at the 8200. You want to drop those packets as close to the source as you can. If you have downstream switches they will still flood that packet.
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10-01-2015 02:41 AM
10-01-2015 02:41 AM
Re: how disable ipv6 ..?
Hello
ok the ACL it in the Core Switch but the problem in the downstream switches, becouse it effect the network printers and can't work i test the printer in another vlan don't have packet flood and the printer wrok, any way i think the only way is to update the the computer network card for all pc it will take time, till i find solove for this problem.
Thank you agian Michael Patmon.