IPv6

I'm having trouble with IPV6 subnets how does a ::/56 prefix produce 256 subnets? Can someone clarify this for me? I was taught that the ::/64 prefix produces 65,536 subnets so wouldn't the ::/56 prefix produce more than 256 subnets? I'm trying to gr...

Folks,After a recent upgrade to firmware v2.0.7.2 my WAP4410N will stop passing IPv6 router advertisements after a period of time. It will pass them after a reboot but it soon stops doing so. A reboot will restore functionality for a short period of ...

what cisco hardware support NAT64 configuration ??http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_nat/configuration/15-mt/nat-15-mt-book/iadnat64-stateful.html#GUID-D99E4D45-F2E9-44FE-855A-41F594B0F046 

Does HSRPv2 that is running only on IPv4 addresses support IPv6 as well?The fail over will work for Ipv4 but does the fail over work on Ipv6 as well?Never tried it yet.

HI,I read some document about IPv4 to IPv6 migration and In 6to4 translation, when IPv4 i.e. 192.168.99.1 is converted into IPv6, it shows IPv6 Address 2002:C0A8:6301::1/64. In this , the ::1 is what interface ID or else. and if interface ID then how...

Hi Are there any good IPv6 research topics to take on for a Masters dissertation in Computer Science. Suggestions would be appreciated.RegardsSid   

I have a few 3560G's & 3750G's in a lab.  They are interconnected in various ways - trunks, L3 P2P's etc - this is a lab right so we can't break anything?  All of them are running the latest 15.0(2)SE7 IP Services images and they are all configured f...

I was wondering if there are any guides for providing network administrators with tools or procedures for logging of IPv6 flows?We have, in a large campus situation, a need to be able to "back calculate" which person or user was in possession of a gi...

Hi All  I am trying to generate a series of IPv6 using a shell script#!/bin/shFROM=1 TO=ffFORMAT="%0${#FROM}X"FROM=$(printf '%d' 0x$FROM) TO=$(printf '%d' 0x$TO)while [ $FROM -le $TO ] do IFROM=$1 ITO=$2 IFROM=$(printf '%d' 0x$IFROM) ITO=$(printf '%d...

hello everyone, i was wondering if it is possible that ipv6 dropping more packets than ipv4.  i run a test using D-ITG, to test data and voice, but on IPv6 lost more packets than ipv4, special when i sent voice and data together, i was wodering why c...

hello everyone, i was wondering if it is possible that ipv6 dropping more packets than ipv4.  i run a test using D-ITG, to test data and voice, but on IPv6 lost more packets than ipv4, special when i sent voice and data together, i was wodering why c...

Can anyone help figure out why the Catalyst 6509 is not able to assign an IPv6 address? Thank you. Cisco Catalyst 6500 version 12.2(33)SXI13 configured as DHCP server for a VLAN responds to Windows 7 client with status code NOADDRS-AVAIL(2). My confi...