problem with dhcp setup

Shane Kerr Shane_Kerr at isc.org
Thu Jun 14 09:48:53 UTC 2007


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John,

> About the range6: you probably wanted to specify /128 rather than /64. We
> should
> probably make it an error if you specify an invalid network (like 1:2:3:4::/8
> or
> something). I'll try to get this fixed for 4.0.0a2 also.
>> [jjmb] So a range6 using a /128 would allow for the assignment of a single
>> IPv6 address?  I do not believe this should be limited to a /128, in fact,
>> it should allow for variable prefix lengths.

One problem here is that fec0:3:0::100/64 is not a valid prefix. Address
expanded out, with a bitmask for /64 below:

    fec0:0003:0000:0000:0000:0000:0000:0100
    1111:1111:1111:1111:0000:0000:0000:0000
                                       ^^^

That bit on the right-hand side is invalid, which is why I suggested /128. The
next alpha of the software will detect this error and let you know about it,
rather than silently masking out invalid bits.

The software allows any prefix length, from /0 to /128, or any arbitrary range,
for range6 statements.

- --
Shane
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