Re: [manet] Roman Danyliw's Discuss on draft-ietf-manet-dlep-multi-hop-extension-06: (with DISCUSS and COMMENT)
Roman Danyliw <rdd@cert.org> Mon, 06 May 2019 21:59 UTC
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From: Roman Danyliw <rdd@cert.org>
To: Lou Berger <lberger@labn.net>
CC: "manet@ietf.org" <manet@ietf.org>, "draft-ietf-manet-dlep-multi-hop-extension@ietf.org" <draft-ietf-manet-dlep-multi-hop-extension@ietf.org>, "manet-chairs@ietf.org" <manet-chairs@ietf.org>, The IESG <iesg@ietf.org>
Thread-Topic: [manet] Roman Danyliw's Discuss on draft-ietf-manet-dlep-multi-hop-extension-06: (with DISCUSS and COMMENT)
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Date: Mon, 06 May 2019 21:59:48 +0000
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Subject: Re: [manet] Roman Danyliw's Discuss on draft-ietf-manet-dlep-multi-hop-extension-06: (with DISCUSS and COMMENT)
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> -----Original Message----- > From: iesg [mailto:iesg-bounces@ietf.org] On Behalf Of Lou Berger > Sent: Sunday, May 5, 2019 9:43 PM > To: Roman Danyliw <rdd@cert.org>; The IESG <iesg@ietf.org> > Cc: manet@ietf.org; draft-ietf-manet-dlep-multi-hop-extension@ietf.org; > manet-chairs@ietf.org > Subject: Re: [manet] Roman Danyliw's Discuss on draft-ietf-manet-dlep- > multi-hop-extension-06: (with DISCUSS and COMMENT) > > Hi, > Please see below. > > On 5/1/19 4:40 PM, Roman Danyliw via Datatracker wrote: > > Roman Danyliw has entered the following ballot position for > > draft-ietf-manet-dlep-multi-hop-extension-06: Discuss > > > > When responding, please keep the subject line intact and reply to all > > email addresses included in the To and CC lines. (Feel free to cut > > this introductory paragraph, however.) > > > > > > Please refer to > > https://www.ietf.org/iesg/statement/discuss-criteria.html > > for more information about IESG DISCUSS and COMMENT positions. > > > > > > The document, along with other ballot positions, can be found here: > > https://datatracker.ietf.org/doc/draft-ietf-manet-dlep-multi-hop-exten > > sion/ > > > > > > > > ---------------------------------------------------------------------- > > DISCUSS: > > ---------------------------------------------------------------------- > > > > This extension (much like draft-ietf-manet-dlep-pause-extension) seems > > to provide a mechanism to direct a modem to drop traffic in an > > unauthenticated fashion -- for directly connected networks via the > > terminate action; and for multi-hop networks via the suppress action. > > > > For example, per the mobile scenario in Section 4 of RFC8175, a > > compromised laptop in the switch could use this extension instruct the > > modem to drop packets without authentication. > > > > I saw in Warren’s comment ballet on > > draft-ietf-manet-dlep-pause-extension > > (https://datatracker.ietf.org/doc/draft-ietf-manet-dlep-pause-extensio > > n/ballot/) > > that > > > > “Lou will add: > > Implementations of the extension defined in this document MUST > support > > configuration of TLS usage, as describe in <xref target="RFC8175"/>, > > in order to protect configurations where injection attacks are > > possible, i.e., when the link between a modem and router is not > > otherwise protected.” > > > > I believe the same caveat is needed in this draft as they are enabling > > similar behavior. Please correct me if I’m conflating the > > capabilities of this extension with the pause extension. > > > > On one hand I think it is reasonable to have the security sections match > between the two. On the other, I think it really seems this IESG is unhappy > with the language approved for 8175. Given this, I'll go ahead and add the > requested test. Thanks. > > > > ---------------------------------------------------------------------- > > COMMENT: > > ---------------------------------------------------------------------- > > > > A few questions and an editorial nit. > > > > (1) Section 1. Editorial. There is a sentence fragment “example > > using.” which likely needs to be removed. > > > > (2) Section 2. Per “The use of the Multi-Hop Forwarding Extension > > SHOULD be configurable”, what is meant by configurable? > > > > (3) Section 3.2.2 and 3.2.3. The Terminate and Direct Connection > > messages are not supposed to be (MUST NO) be sent in a Session Update > > Message. How should the modem behave if it receives one anyway? > > > > base DLEP 8175 resets a session on any type of parsing error. I'm personally > not a fan of this, but it *is* what RFC8175 says... Understood. Thanks for the clarity. Roman > Thanks, > Lou > > > > > _______________________________________________ > > manet mailing list > > manet@ietf.org > > https://www.ietf.org/mailman/listinfo/manet > >
- [manet] Roman Danyliw's Discuss on draft-ietf-man… Roman Danyliw via Datatracker
- Re: [manet] Roman Danyliw's Discuss on draft-ietf… Lou Berger
- Re: [manet] Roman Danyliw's Discuss on draft-ietf… Roman Danyliw