IPv6 design, deployment, standards, and best practices.
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Tue Jul 07, 2015 9:52 am

ipv6 routing - 2 subnets.

Tue Jul 07, 2015 10:15 am


I'm trying to configure ipv6 routing between machines in the different subnets. Between the machines already configured and works ipv4.

I have 2 ipv4 subnets with addresses:

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In the first subnet works vmware virtual machines. I do not know what the machines work in the second subnet, but most likely there are vmware VM’s also.

I turned on the ipv6 on 2 machines on different subnets, but the machines don't connect with ipv6. Ipv6 addresses are generated automatically:

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How do I configure routing? Which (What kind of format? how to calculate?) Gateway should I specify to the machines began to see each other.

In the case of ipv4 is all pretty simple:

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Routing Table: IPv4
Destination Gateway Flags Ref Use Interface
-------------------- -------------------- ----- ----- ---------- ---------
default UG 1 4 U 1 2 e1000g1

bash-3.2# traceroute -A inet
traceroute to (, 30 hops max, 40 byte packets
1 ( 5.494 ms 0.729 ms 0.679 ms
2 ( 0.355 ms 0.194 ms 0.261 ms

bash-3.2# traceroute -A inet6 fe80::221:28ff:fe0f:79c5
traceroute to fe80::221:28ff:fe0f:79c5, 30 hops max, 60 byte packets
1 fe80::250:56ff:feb7:8b5b 2996.028 ms !A 2999.623 ms !A 2999.927 ms !A

I tried to enter 250:56ff:feb7:1 gateway, but it's not working.

Maybe I should not use the /10 prefix. I didn't know what is this prefix, it is generated automatically.

Help me please.

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