[netmod] 6991bis: host
Ladislav Lhotka <lhotka@nic.cz> Fri, 29 March 2019 14:29 UTC
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From: Ladislav Lhotka <lhotka@nic.cz>
To: NETMOD WG <netmod@ietf.org>
Date: Fri, 29 Mar 2019 15:29:05 +0100
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Archived-At: <https://mailarchive.ietf.org/arch/msg/netmod/PISOifrtow4oWLGW7meBBSri7nM>
Subject: [netmod] 6991bis: host
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Hi, the inet:host type should not use the inet:domain-name as its member because the latter type doesn't satisfy the requirements of RFC 952 and 1123 on host names. For example, the type now permits a single dot (".") as the value or the underscore character. I propose to change the "host" type as follows: OLD typedef host { type union { type inet:ip-address; type inet:domain-name; } ... } NEW typedef host { type union { type inet:ip-address; type inet:host-name; } ... } A reasonable definition of "host-name" is IMO a domain name whose labels are NR- LDH (non-registered letter-digit-hyphen label) [RFC 5890]: typedef host-name { type string { pattern '((([a-zA-Z0-9]([a-zA-Z0-9\-]){0,61})?[a-zA-Z0-9]\.)*' + '([a-zA-Z0-9]([a-zA-Z0-9\-]){0,61})?[a-zA-Z0-9]\.?)'; pattern '(.*\.)?..\-\-.*' { modifier invert-match; } length "2..253"; ... } } Lada -- Ladislav Lhotka Head, CZ.NIC Labs PGP Key ID: 0xB8F92B08A9F76C67
- [netmod] 6991bis: host Ladislav Lhotka
- Re: [netmod] 6991bis: host Juergen Schoenwaelder
- Re: [netmod] 6991bis: host Ladislav Lhotka