Re: [mpls] MPLS-RT review of draft-bonica-mpls-self-ping

Ronald Bonica <rbonica@juniper.net> Thu, 12 March 2015 02:50 UTC

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From: Ronald Bonica <rbonica@juniper.net>
To: "lizho.jin@gmail.com" <lizho.jin@gmail.com>, mpls-chairs <mpls-chairs@tools.ietf.org>, draft-bonica-mpls-self-ping <draft-bonica-mpls-self-ping@tools.ietf.org>, mpls-ads <mpls-ads@tools.ietf.org>
Thread-Topic: MPLS-RT review of draft-bonica-mpls-self-ping
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Date: Thu, 12 Mar 2015 02:50:28 +0000
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Subject: Re: [mpls] MPLS-RT review of draft-bonica-mpls-self-ping
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For section 6, originally ingress could identify the LSP ping packet with well-known UDP port, and configure ACL rule to reduce risk of attack. But now it is more difficult to filter the packet with access list, which may increase the risk.

Lizhong,

Implementation know the port(s) upon which they send MPLS Self-ping traffic. They can configure ACLs on that port or those ports. ACLs can protect dynamic ports, so long as they are predictable.

                                                                    Ron