nanog mailing list archives
RE: NAT devices not translating privileged ports
From: Jean St-Laurent via NANOG <nanog () nanog org>
Date: Fri, 4 Jun 2021 08:36:24 -0400
I believe all devices will translate a privileged ports, but it won't translate to the same number on the other side. It will translate to an unprivileged port. Is it what you meant or really there are some devices that will not translate at all a privileged port? What are you trying to achieve? Jean -----Original Message----- From: NANOG <nanog-bounces+jean=ddostest.me () nanog org> On Behalf Of Fernando Gont Sent: June 4, 2021 3:00 AM To: nanog () nanog org Subject: NAT devices not translating privileged ports Folks, While discussing port randomization (in the context of https://www.ietf.org/archive/id/draft-ietf-ntp-port-randomization-06.txt ), it has been raised to us that some NAT devices do not translate the source port if the source port is a privileged port (<1024). Any clues/examples of this type of NATs? Thanks! Regards, -- Fernando Gont Director of Information Security EdgeUno, Inc. PGP Fingerprint: DFBD 63E3 B248 AE79 C598 AF23 EBAE DA03 0644 1531
Current thread:
- NAT devices not translating privileged ports Fernando Gont (Jun 04)
- RE: NAT devices not translating privileged ports Jean St-Laurent via NANOG (Jun 04)
- Re: NAT devices not translating privileged ports Blake Hudson (Jun 04)
- Re: NAT devices not translating privileged ports Alvaro Pereira (Jun 07)
- Re: NAT devices not translating privileged ports Fernando Gont via NANOG (Jun 10)
- Re: NAT devices not translating privileged ports Blake Hudson (Jun 10)
- Re: NAT devices not translating privileged ports Blake Hudson (Jun 04)
- Re: NAT devices not translating privileged ports Fernando Gont via NANOG (Jun 10)
- Re: NAT devices not translating privileged ports Bjørn Mork (Jun 10)
- Re: NAT devices not translating privileged ports Fernando Gont via NANOG (Jun 10)
- RE: NAT devices not translating privileged ports Jean St-Laurent via NANOG (Jun 10)
- Re: NAT devices not translating privileged ports Fernando Gont via NANOG (Jun 10)
- RE: NAT devices not translating privileged ports Jean St-Laurent via NANOG (Jun 10)
- RE: NAT devices not translating privileged ports Jean St-Laurent via NANOG (Jun 04)