Browsing articles tagged with "ipv6 - Admins Goodies"
Jun 7, 2013
tom

Convenient public IPv6 test addresses

Are there any convenient public, globally routable test addresses for IPv6? Similar to how 8.8.8.8 and 8.8.4.4 tend to get used this way for IPv4? Asked by MikeyB The shortest I’ve seen is www.sprint.net (2600::). Answered by Gerald Combs Check more discussion of this question. Bookmark on Delicious Digg this post Recommend on Facebook share via Reddit Share with Stumblers Tweet about it Print for later Bookmark in Browser Tell a friend

Continue Reading »
Nov 16, 2012
tom

Internet Explorer and IPv6

I can’t seem to stop the IPv6 address being registered by our server. Does anyone know how? This is causing slow browsing issues when browsing to spiceworks server using Internet Explorer. The problem is due to Internet Explorer accessing spiceworks using an IPv6 address when it should be using a IPv4 address. I’ve followed the instructions below on how to stop IPv6 addresses being registered, but that didn’t help. How to remove or disable IPv6 […]

Continue Reading »
Nov 4, 2012
tom

IPV6 – using tunnel broker / dns to provide ipv4 compatibility

I’ve a tunnel broker from he.net associate with a IPV6 /64 subnet As a newby to ipv6, i’ve just discovered that its not reliable to only set a subdomain to a AAAA entry : because most of ISP will not be able to reach it Considering i got 3 vm, each with ipv6 ip , i would like to know if there any way to set up my dns to handle that ? I only […]

Continue Reading »
Nov 3, 2012
tom

List IPv6 Neighbor Proxies in Linux

With the command like these the following you can add neighbor proxies in Linux ip -6 neigh add proxy 2001:db8:100:3022:1::4 dev eth0 Is there a way how to list which proxies have already been defined? Asked by aef Try with: ip -6 neigh show proxy It works for me: emily ~ # ip -6 neigh add proxy 2001:db8:100:3022:1::4 dev eth0 emily ~ # ip -6 neigh show proxy 2001:db8:100:3022:1::4 dev eth0 proxy Answered by mulaz […]

Continue Reading »
Sep 7, 2012
tom

IPv6 Address Switch

I have IPv6 addresses on a Linux based server. How can I switch the current address to a new one? Is there a way to do it using shell commands? How about using Python? Thanks. Asked by Austin Modo Easy: ip -6 address add 2001:dead:beef::2/64 dev eth0. The same goes for removal: ip -6 address delete 2001:dead:beef::1/64 dev eth0 To show your addresses: ip -6 address show Answered by Falk Stern Check more discussion of […]

Continue Reading »
Jul 26, 2012
tom

tar over ssh to IPv6 host

I want to tar to a remote host using the remote host’s IPv6 address. I can ssh and scp to the host but GNU tar does not accept the IPv6 address. I tried: tar -cjvf root@2001:DB8::1234:5678:/backup.tar.bz2 * and tar -cjvf root@[2001:DB8::1234:5678]:/backup.tar.bz2 * and tar -cjvf root@\[2001:DB8::1234:5678\]:/backup.tar.bz2 * but none of these work. All of these give address errors from tar. My Ubuntu system has tar version 1.25-3. Asked by Lars Nordin I found the answer […]

Continue Reading »
Jul 26, 2012
tom

IPv6 very slow while IPv4 not on same server

I have a development and a production server, both running CentOS, on the same network with similar configurations. On one (the production server), when I do a curl, it attempts IPv6 first, but that times out after around 45 seconds and falls back to IPv4, which works fine. Ping6 also times out and never receives any packets back, but regular ping (which I think goes over IPv4) works fine. On the development server, ping6 and […]

Continue Reading »
Jul 13, 2012
tom

IPv6 address preference and privacy extensions on Windows 7 and Ubuntu 12.04

I have a dual-stack network with a DHCPv6 server in a stateful mode (managed address configuration). Windows 7 and Ubuntu 12.04 hosts get the address configuration successfully, but still prefer the randomly generated addresses for a source address with a prefix advertised by RA. If the privacy extensions are turned of with netsh interface ipv6 set privacy state=disabled, the problem disappears and the DHCP-provided address is used as a source. I would like to know […]

Continue Reading »
Jul 13, 2012
tom

ping6: sendmsg: Operation not supported on FreeBSD

I’m trying to set up IPv6 on FreeBSD 8.2. I added to the /etc/rc.conf the following lines: ipv6_enable=”YES” ipv6_gateway_enable=”YES” ipv6_ifconfig_le0=”ff00::2″ and restarted IPv6: /etc/rc.d/network_ipv6 restart Now I have the following settings for network interfaces: le0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=8<VLAN_MTU> ether 00:50:56:01:04:87 inet 10.76.247.78 netmask 0xffffff00 broadcast 10.76.247.255 inet6 ff00::2 prefixlen 64 nd6 options=3<PERFORMNUD,ACCEPT_RTADV> media: Ethernet autoselect status: active le1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=8<VLAN_MTU> ether 00:50:56:01:04:86 media: Ethernet autoselect status: active plip0: […]

Continue Reading »
Jul 11, 2012
tom

Manually set IPv6 neighbor’s MAC address in Mikrotik’s RouterOS

I have an interesting problem. An ISP of ours started providing native IPv6 on their network. They provided us with a /56 prefix and a /126 linking segment (::1 being their endpoint and ::2 being ours). However, the ISP’s DSLAM does not support Neighbor Discovery, so they asked us to provide our router’s MAC address to manually enter in their neighbor table and provided us with theirs. We are using Mikrotik’s RouterOS 5.2 on our […]

Continue Reading »
Pages:1234567...21»