nanog mailing list archives
Re: comcast ipv6 PTR
From: Paul Ferguson <fergdawgster () mykolab com>
Date: Wed, 09 Oct 2013 09:59:59 -0700
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 10/9/2013 9:49 AM, Chris Adams wrote: > Once upon a time, Robert Webb <rwebb () ropeguru com> said: >> But how would thet differ from the IPv4 address space which has PTR >> records for all their IP's? Just the shear number they would have to >> deal with in the IPv6 space? > > Oh, are you looking for auto-generated reverse for every address? > That's not going to happen for IPv6 (and it turns out that it wasn't > really a good idea for IPv4). There's no reason to have reverse DNS > unless it has meaning, and "12-34-56-78.rev.domain.net" isn't really all > that useful. > That's not necessarily true -- some (very large) organizations using DMARC will reject mail from hosts without a PTR record. - - ferg -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 10.2.0 (Build 2317) Charset: utf-8 wj8DBQFSVYuKq1pz9mNUZTMRAo5dAKCCuFYjseatheC9upjRRgkzcFJ5LwCfUhhd Krgz0IA6e5dbllo8NgXbzV0= =mehI -----END PGP SIGNATURE----- -- Paul Ferguson Vice President, Threat Intelligence Internet Identity, Tacoma, Washington USA IID --> "Connect and Collaborate" --> www.internetidentity.com
Current thread:
- comcast ipv6 PTR Blair Trosper (Oct 09)
- Re: comcast ipv6 PTR Chris Adams (Oct 09)
- Re: comcast ipv6 PTR Robert Webb (Oct 09)
- Re: comcast ipv6 PTR Chris Adams (Oct 09)
- Re: comcast ipv6 PTR Paul Ferguson (Oct 09)
- Re: comcast ipv6 PTR Chris Adams (Oct 09)
- Re: comcast ipv6 PTR Livingood, Jason (Oct 09)
- Re: comcast ipv6 PTR Blair Trosper (Oct 09)
- Re: comcast ipv6 PTR Chris Adams (Oct 09)
- Re: comcast ipv6 PTR Joe Abley (Oct 09)
- Re: comcast ipv6 PTR John Levine (Oct 09)
- Re: comcast ipv6 PTR Robert Webb (Oct 09)
- Re: comcast ipv6 PTR Chris Adams (Oct 09)
- Re: comcast ipv6 PTR Barry Shein (Oct 09)
- Re: comcast ipv6 PTR Chris Adams (Oct 09)
- Re: comcast ipv6 PTR Barry Shein (Oct 09)
- Re: comcast ipv6 PTR Lee Howard (Oct 14)