Re: [OPSEC] ICMP/ICMPv6 network ingress filtering (Fwd: New Version Notification for draft-gont-opsec-icmp-ingress-filtering-00.txt)
Fernando Gont <fgont@si6networks.com> Thu, 11 September 2014 10:34 UTC
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Date: Thu, 11 Sep 2014 06:50:43 -0300
From: Fernando Gont <fgont@si6networks.com>
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To: Vic Liu <liuzhiheng@chinamobile.com>, opsec@ietf.org
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Subject: Re: [OPSEC] ICMP/ICMPv6 network ingress filtering (Fwd: New Version Notification for draft-gont-opsec-icmp-ingress-filtering-00.txt)
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Hi, Vic, Thanks so much for your feedback! -- Please find my comments in-line... On 09/11/2014 12:15 AM, Vic Liu wrote: > > I read the document and think it is important work. In particular, I > would be very glad to see this type of filtering implemented in CPE > devices. Are you aware if Linux implements this? Don't recall if I ever checked. But I will, and will come back to you. > Section 4 should clarify that this filtering must be performed on icmp > error messages. Document says 'SHOULD perform ingress filtering on the > Destination Address of the IP packet embedded in the ICMP payload', but > this does not apply to other icmp messages like icmp echo request and reply. You're right. We will update the text to: IP nodes enforcing IP ingress filtering SHOULD perform ingress filtering on the Destination Address of the IP packets embedded in the payload of ICMP error messages. Thanks! Best regards, -- Fernando Gont SI6 Networks e-mail: fgont@si6networks.com PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
- [OPSEC] ICMP/ICMPv6 network ingress filtering (Fw… Fernando Gont
- Re: [OPSEC] ICMP/ICMPv6 network ingress filtering… Vic Liu
- Re: [OPSEC] ICMP/ICMPv6 network ingress filtering… Fernando Gont