HTTP/2 200 date: Tue, 07 Oct 2025 20:15:18 GMT content-type: application/xml content-encoding: gzip cache-control: public, max-age=3600 cross-origin-opener-policy: same-origin expires: Tue, 07 Oct 2025 21:15:18 GMT referrer-policy: same-origin vary: Cookie, origin, Accept-Encoding x-content-type-options: nosniff x-frame-options: DENY x-resolution-methods: manual;auto;fallback x-resolution-outcomes: ;RfcAdapter: using docid IETF RFC 2627 -> using query @.type == "IETF" && @.primary == true && @.id == "RFC 2627" -> 1 found,; last-modified: Tue, 07 Oct 2025 20:15:18 GMT cf-cache-status: MISS set-cookie: __cf_bm=1RQPyguC4tI0rTrf8F1.vG1D.Ld1T4rD4UBkBqw2L3Q-1759868118-1.0.1.1-d92LEDVrIhtReMk4uKb0wWTtYtezw.F62zrzLDeebXYwTePCm6GG.kDplSpBUOmcFNB3_xkTldydBT0sscekmxOZEBwijNZu23Hp0DbyGNQ; path=/; expires=Tue, 07-Oct-25 20:45:18 GMT; domain=.ietf.org; HttpOnly; Secure; SameSite=None server: cloudflare cf-ray: 98b011d62ed18839-BLR alt-svc: h3=":443"; ma=86400 This report contains a discussion of the difficult problem of key management for multicast communication sessions. It focuses on two main areas of concern with respect to key management, which are, initializing the multicast group with a common net key and rekeying the multicast group. This memo provides information for the Internet community.