On Wed, Jun 21, 2023 at 07:46:01PM +0000, Salz, Rich wrote:
> I have made the other changes, just seeking clarification on one point.
>
> >> 6.4. Matching an IP Address Portion
> >> This document does not specify how an SRV-ID reference identity can include
> >> an IP address.
>
> > I think SRV-ID clearly says it's just DNS name, so the presented identifier
> > cannot match an IP address. I think this section should clearly say that IP
> > addresses cannot match SRV-ID.
>
> I am confused, because I thought an IP address *was* a DNS name.
No, IP addresses are not DNS names. And IP address SANs are octet
strings, 4 bytes for IPv4 and 16 bytes for IPv6.
There is a mapping of IPv4 and IPv6 addresses to reversed dotted quads
for reverse resolution. Examples:
1.0.0.127.in-addr.arpa. IN PTR ?
1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa.
IN PTR ?
But in all other ways IP addresses are definitely NOT domain names.
--
Viktor.
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