I can't see a completely ipv6 address (source and destination), I just see ::1

asked 2020-04-25 13:45:04 +0000

Irina
3 ●1

updated 2020-04-25 22:44:10 +0000

Guy Harris
19890 ●3 ●659 ●207

i can't see a completely ipv6 address (source and destination). I see just ::1 , not more. So source address = ::1 and destination address = ::1 .Why? Please help. Thank you

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answered 2020-04-25 14:22:06 +0000

Chuckc
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updated 2020-04-25 14:23:17 +0000

IPv6 in Wireshark (17:05 - special addresses)
That's the lookback address - 127.0.0.1 in IPv4.

The IPv6 Cheat Sheet lists special addresses.

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Many Thanks!

Irina ( 2020-04-26 07:43:09 +0000 )edit

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answered 2020-04-27 15:28:12 +0000

cmaynard

11115 ●11 ●317 ●165 https://www.igt.com/

Cheat sheets and YouTube videos are definitely helpful, but I would recommend trying to reference more authoritative sources first. Mind you, Jeff Carrell is definitely a reputable source, but it's still good to know where he gets his information from, which is here:

RFC 4291 IP Version 6 Addressing Architecture:
- Section 2.2. Text Representation of Addresses is the definitive source for IPv6 address text representations, and
- Section 2.5.3. The Loopback Address is where the Loopback Address is defined.
RFC 5952 A Recommendation for IPv6 Address Text Representation:
- Section 4. A Recommendation for IPv6 Text Representation is where the "::" notation is introduced and the rules surrounding its use are governed.
RFC 6890 Special-Purpose IP Address Registries:
- Section 2.2.3. IPv6 Special-Purpose Address Registry Entries also explicitly lists the short form loopback address definition as ::1/128.

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I think there is only a small subset of us that enjoys reading RFCs. Thanks for the links. :-)

Chuckc ( 2020-04-27 16:27:52 +0000 )edit

Ha, I only enjoy reading them from the perspective of learning something, which I almost always do no matter how many times I open up an RFC and read from it. But I wouldn't exactly place this enjoyment in the same category as other forms of entertainment. :)

cmaynard ( 2020-04-27 16:37:32 +0000 )edit

Thank you for links!

Irina ( 2020-04-29 18:47:28 +0000 )edit

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