IPv6

I am configuring IPV6 in GNS3 lab environment for studying and when I configured the IP address, in Fa0/0 and S0/0 on both routers (R1 and R4) the Serial interface goes UP/UP for a few seconds and then it goes UP/Down and I am unable to ping the othe...

Hello,We have a router 7600. Our IPv4 connection works fine. It´s connected with a IPS and a Nexus 7k that acts as a Router Reflector for BGP.We got a IPv6 range and a address from our ISP. We are working to activate IPv6.Everything is configured, li...

Hi,I am having a weird issue in a small ipv6 network. I have 2 routers connected directly with each other and servers on each side of both the routers, the servers are configured with static ip address with the router's interface as default gateway.E...

Hi guys,I am currently preparing for my ccie v5 and honestly ipv6 is proving quite difficult to understand, the prefix, subnetting, and node addressing cna some one please do me the favor of explaining this or provide any link or support regarding th...

I have pretty simple IPv6 over PPPoE connection to ISP using SLAAC:interface Dialer1  ipv6 address autoconfig defaultInitially everything works fine, but after 30 minutes default route disappears from my routing table. Obviously, my ISP does not send...

Hi everybody,I try to test DHCP IPV6.My topologie is very simple :  CustomerA <--------------------------->R_IPV6 - Customer is Linux debian - Router is 7200 >>> Version 12.4(25f) I read the documentation http://www.cisco.com/c/en/us/td/docs/ios-xml/...

Hi,I've been trying to debug this problem for a few days now but I can't figure out what is wrong.I configured BGP according to documentation on 3 of my routers which will have IPv6 for nowbut I will focus on two of them as they are directly connecte...

Hi;Are we have to use 64bit prefix for host addresses ?For example we gave 2001:xxx:xxx:100::10/56 address to one of our servers and everything is fine. Also on another subnet of firewall we use  2001:xxx:xxx:200::10/56 for another server etc.Is this...

We have run out of IPv4s and ARIN has a very strict policy in providing additional IPv4, so we have requested to receive IPv6 from ARIN.Our Internet Backbone providers do support IPv6 and they said that they will broadcast those IPs.We will be runnin...

Hello  freinds.i need to know if the IP BASE feature of Cisco IOS running on Catalyst switches has support for IPv6, and if it does, how do i enable IPv6 on the switch ?thanks.     

Folks, I am looking at some help/recomendations to get some communication going on between IPv4 and IPv6 hosts defined on a switch. These hosts could be or could not be in the same VLAN. regards,Nik

Hi,I am trying to configure ip sla for floating default route for my IPv6 address. I have already configure IPv6 address on the interface and also enabled IPv6 unicast-routing on the router, still my ip sla command is not allowing me to enter ipv6 ad...