This is the security directorate (secdir) review for the sipcore-locparam draft. Secdir tries to review all documents. The primary intended recipient of this review if the security AD's; all others should consider this to be like any other last-call review.

Summary: ready with nits.

End of Sec 1 has a quote-based typo.

In Sec 3, "This document does not comment..." paragraph is a beautiful acceptance of reality.

In Sec 6, do proxies normally add themselves to the Record-Route field?  If so, that might be worth mentioning explicitly.

In Sec 7, looks good.  A couple of typo's "multiple*S* locations" and "hop-<SPACE>by-hop" and "an<SPACE>other domain."