Some IPv4 Mapped IPv6 Addresses don't parse

[liaorg]

The following calls throw exceptions:

ipaddr.IPv6.parse("FFFF::255.255.255.255")
throw :
Error: ipaddr: the address has neither IPv6 nor IPv4 format

but
ipaddr.IPv6.parser("FFFF::0:255.255.255.255") is ok!

I'm using version 2.1.0

[whitequark]

Yep that's a bug.

[liaorg]

Yep that's a bug.

can you fix it , and when? thanks @whitequark

[whitequark]

This library is passively maintained: if an acceptable fix is proposed I will merge it and release a new version. Otherwise no.

[takapiro99]

@liaorg

It looks like the ipv6 parsing logic has changed in v2.2.

According to the RFC, the format of "IPv4-Mapped IPv6 Address" is ::FFFF:0:0/96. I think the format of FFFF::0:0/96 is a violation.

I am not a network engineer, so I don't know the actual situation,　but wouldn't it be better to fix the logic of the parsing according to the RFC?

If you have any other background, please let me know.