IPv6

Resolved! Link Local Address on BGP

I recently start to have IPv6 BGP Peer, at first I try to block all the link local address at my interface incoming ACL but after a while I notice that there has many match log on the deny link local address. I want to know is it a correct thing to n...

Router Cisco 881 loosing IPv6 connectivity

Hello,I have problem with IPv6 connectivity on Cisco 881 (IOS Version 15.2(1)T1). Router randomly (after a few days) looses IPv6 connection to ISP and only reloading router resolves the issue. IPv4 connectivity works normally. What would be the best ...

Configured Tunnel is not working

Hello,Please see attached topology and configuration files.I've configured a "Configured Tunnel" mechanism for IPv6 to IPv4 transition. However, i tried to ping from, for example R3 to R4 and vice versa but is not working. I typed "show ipv6 interfac...

Resolved! IPv6 Subnetting

Hello,So far, as i understood from different web searches and resource materials, the Internet Registry (ARIN, for example) provides a /32 address block to Top ISP. The Top ISP provides a /48 to customers or to normal ISPs (Lower ISPs). Finally, the ...

Resolved! OSPFv3 issue on a subif associated with a VRF

Hi,I am trying to virtualize router and physical interface to test daul stack topology. This is one of my test 1841 routers which is failing enable OSPFv3 on a subif associated with a vrf while ospfv2 works fine with IPv4　interface FastEthernet0/1.59...

ipv6 icmp rate limiting

Hi I would like to know that what is the use of ipc6 icmp rate limiting & how it works ?how we can config this one , Like i want to limit 15 msg per second then how i will config ?

Link Local BGP peering between Cisco and Juniper (M-Series)

Hi,has anybody successfully managed to get a working IPv6 session between a Cisco and a Juniper router using Link Local IPs?I got it working between two cisco routers and two Juniper Routers but not with the two different vendors.Configuration on the...

Resolved! Unable to establish OSPFv3 neighbors through transparent ASA

I have 2 devices running IPv6 with an ASA ver 8.4(2) in transparent mode with multiple contexts in between them. I can ipv6 ping the devices through the ASA but can not get the 2 devices to establish OSPFv3 adjacency. They are able to establish adj...

Resolved! Unable to select tunnel mode ipv6ip

Hi.Please, can you explain why I am not able to select tunnel mode "ipv6ip" on my switch. I would like to configure tunnel from Hurricane tunnelbroker.net.switch-cisco-lab-cor(config-if)#tunnel mode ? aurp AURP TunnelTalk AppleTalk encapsulation ...

which switch will work in ipv6 plz can u suggest me we have 2960g and 3560 is it work for ipv6 ws-C3560-24t-SV02---Posted by WebUser Venkatesh Murthy Gowda

ipv6 isp

I want to start testing and playing with IPv6. I barely (and I use that term lightly) understand the way ipv6 works, but comming from a strong ipv4 background it shouldnt be that difficult. My question is how do I get an internet ipv6 assigned to m...

IPv6 HSRP

I'm running IOS adventerprisek9.03.04.00.S.151-3.S.binRouter1(config-subif)#standby 1 ipv6 ? X:X:X:X::X IPv6 link-local address autoconfig Obtain address using autoconfiguration I tried to enable Global unicat as an IPv6 address and unfortunately I...

clients losing connection after receiving IPv6 addresses on multiple subnets

We are running a dual stack implementation on campus and are having an issue in some locations on campus where a client will boot and receive an IPv6 address in the data VLAN and after a couple minutes will receive an additional address from the VOIP...

Resolved! 3825 with flash:c3825-advsecurityk9-mz.151-4.M2.bin not able to config IPv6

Hi AllDespite what the feature navigator says, I am not able to configure IPv6 on this router.show ver----------------------#sh verCisco IOS Software, 3800 Software (C3825-ADVSECURITYK9-M), Version 15.1(4)M2, RELEASE SOFTWARE (fc1)Technical Support: ...

ASA-5585-X ipv6 handling

Hi,i would like to know if the ASA is still handling ipv6 in software (like the FWSM for example), or is it using its powerful hardware to handle the ipv6 traffic?Best regardsPhilipp