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Assigning more IPv6 to a interface
I setup the Hurricane Electric IPv6 over IPv4 Tunnel with my own /48, but I'm having some issue assigning more than 1 IPv6 address to an interface using the standard example configurations (while modifying the netmask and example IPv6 to my assigned /48 subnet).
How does one add more more IPv6 Addresses (or preferably, an entire /64 subnet) onto a network interface?
Comments
That's certainly a very smart and well-thought-out idea, I assume you also have 274877906944 gigabytes of RAM to store all the IPs in a /64?
Other than that, which OS are you using, and how/where do you set up your tunnel?
You can always add an additional IP to an interface via:
What's left for you is only to figure out how to get that to execute right after you create your tunnel. E.g. in debian's /etc/network/interfaces you can use an "up" line in the interface definition block.
I don't ever remember having a unused /64 block requiring a million gigabytes of ram, but ok?
Elaborate?
Assigned to an interface != "unused". You can't assign the whole block, only individual IPs from it. Assigning all IPs would require the above-mentioned amount of RAM.
Answer my question first?
Actually, to be honest, I was completely negligent of the fact that using a entire /64 block would require a million gigs of ram.
I mean... if you want me to
i.e. give you exact instructions on how to configure additional IPs, you will need to answer my initial question first, which was:
I assumed it was the other question, but the answer to your current one is:
Debian 7 x32 DigitalOcean Image, Hurricane Electric IPv6 Tunnel Broker.
tunnelbroker.net in their "Example configurations" provides a setup for Debian/Ubuntu, you add that to /etc/network/interfaces:
auto he-ipv6 iface he-ipv6 inet6 v4tunnel address 2001:470:xxx:xxx::2 netmask 64 endpoint [ip] local [ip] ttl 255 gateway 2001:470:xxx:xxx::1 up ip -6 addr add 2001:470:yyyy::1/128 dev he-ipv6 up ip -6 addr add 2001:470:yyyy::2/128 dev he-ipv6 up ip -6 addr add 2001:470:yyyy::3/128 dev he-ipv6 up ip -6 addr add 2001:470:yyyy::4/128 dev he-ipv6 up ip -6 addr add 2001:470:yyyy::5/128 dev he-ipv6Last 5 lines is how you can add more IPs, 2001:470:yyyy:: in this case would be your /48.
After editing that file you just do
it's a little hard to suggest how to alocate the ip, if we don't know the os you use:)
do you use centos/debian?
rm_ is always helping me when i have problem asigning ipv6, spirit is also helpfull too
Everything appears to work. Thanks @rm_ !
But out of curiosity, I assigned myself a /120 to the interface.
But I'm having trouble determining the addresses in the /120 subnet.
Is there a tool that will predict or determine what IPv6 addresses are in said subnet, or a quick primer on how to do so by hand?
actually, @rm_, assigning a /64 is possible, I am not sure how, but it's a feature, called AnyIP, tried, doesn't work for me. http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79ad14a2d51e95f0ac3cef7cd116a57089ba82
@chauffer Yes I know about that one, but last time I heard anything about it, it was an experimental patchset that seemed to go nowhere. Good to see it finally got merged.