224.0.0.0/24 —— Local Network Control Block.
224.0.1.0/24 —— Internetwork Control Block.
| 组播IP地址 | 解释 |
| 224.0.0.0 | 基准地址（Base address，保留） |
| 224.0.0.1 | 发送给网络中所有终端设备（All systems on this subnet） |
| 224.0.0.2 |
|
| 224.0.0.3 | 未分配 |
| 224.0.0.4 | DVMRP（距离矢量组播路由选择协议 ，Distance Vector Multicast Routing Protocol）路由器 |
| 224.0.0.5 | DR、BDR向DRother发送DD、LSA Request或者LSA Update时的目标地址是AllSPFRouter(224.0.0.5)
All SPF Routers： |
| 224.0.0.6 | DRother向DR、BDR发送DD、LSA request或者LSA UPdate时的目标地址是AllDRouter(224.0.0.6)
All DRouters： |
| 224.0.0.7 | ST路由器，Internet Stream Protocol (routers). |
| 224.0.0.8 | ST主机，Internet Stream Protocol (hosts). |
| 224.0.0.9 | RIPv2更新，代表所有的RIPv2路由器 |
| 224.0.0.10 | EIGRP发送Hello包和更新 |
| 224.0.0.11 | Mobile-Agents. |
| 224.0.0.12 | DHCP服务器 / 中继代理（DHCP server / relay agent） |
| 224.0.0.13 | 所有PIMv2（Protocol Independent Multicast）路由器 |
| 224.0.0.14 | RSVP封装（RSVP-ENCAPSULATION） |
| 224.0.0.15 | 所有CBT（Core Based Trees）路由器 |
| 224.0.0.16 | 指定sbm（Designated-sbm） |
| 224.0.0.17 | 所有sbms（all-sbms） |
| 224.0.0.18 | VRRP（Virtual Router Redundancy Protocol）通告 |
| 224.0.0.19 | IPAllL1ISs. |
| 224.0.0.20 | IPAllL2ISs. |
| 224.0.0.21 | IPAllIntermediate Systems. |
| 224.0.0.22 | IGMPv3, Internet Group Management Protocol. |
| 224.0.0.23 | GLOBECAST-ID. |
| 224.0.0.24 | OSPFIGP-TE. |
| 224.0.0.25 | router-to-switch. |
| 224.0.0.26 | — |
| 224.0.0.27 | Al MPP Hello. |
| 224.0.0.28 | ETC Control. |
| 224.0.0.29 | GE-FANUC. |
| 224.0.0.30 | indigo-vhdp. |
| 224.0.0.31 | shinbroadband. |
| 224.0.0.32 | digistar. |
| 224.0.0.33 | ff-system-management. |
| 224.0.0.34 | pt2-discover. |
| 224.0.0.35 | DXCLUSTER. |
| 224.0.0.36 | DTCP Announcement. |
| 224.0.0.68 | zeroconfaddr. |
| 224.0.0.101 | cisco-nhap. |
| 224.0.0.102 | HSRP. |
| 224.0.0.103 | MDAP. |
| 224.0.0.104 | Nokia MC CH. |
| 224.0.0.105 | ff-lr-address. |
| 224.0.0.106 | All-Snoopers. |
| 224.0.0.251 | mDNS, Multicast DNS. |
| 224.0.0.252 | Link-local Multicast Name Resolution. |
| 224.0.0.253 | Teredo. |
| 224.0.1.0 | VMTP Managers. |
| 224.0.1.1 | NTP, Network Time Protocol. |
| 224.0.1.2 | SGI公司的Dogfight应用。 |
| 224.0.1.3 | Rwhod. |
| 224.0.1.4 | VNP. |
| 224.0.1.5 | Artificial Horizons – Aviator. |
| 224.0.1.6 | NSS, Name Service Server. |
| 224.0.1.7 | AUDIONEWS – Audio News Multicast. |
| 224.0.1.8 | SUN NIS+ Information Service. |
| 224.0.1.9 | MTP, Multicast Transport Protocol. |
| 224.0.1.10 | IETF-1-LOW-AUDIO. |
| 224.0.1.11 | IETF-1-AUDIO. |
| 224.0.1.12 | IETF-1-VIDEO. |
| 224.0.1.13 | IETF-2-LOW-AUDIO. |
| 224.0.1.14 | IETF-2-AUDIO. |
| 224.0.1.15 | IETF-2-VIDEO. |
| 224.0.1.16 | MUSIC-SERVICE. |
| 224.0.1.17 | SEANET-TELEMETRY. |
| 224.0.1.18 | SEANET-IMAGE. |
| 224.0.1.19 | MLOADD. |
| 224.0.1.20 | Any private experiment. |
| 224.0.1.21 | DVMRP on MOSPF. |
| 224.0.1.22 | SVRLOC. |
| 224.0.1.23 | XINGTV. |
| 224.0.1.24 | microsoft-ds. |
| 224.0.1.25 | nbc-pro. |
| 224.0.1.26 | nbc-pfn. |
| 224.0.1.27 | lmsc-calren-1. |
| 224.0.1.28 | lmsc-calren-2. |
| 224.0.1.29 | lmsc-calren-3. |
| 224.0.1.30 | lmsc-calren-4. |
| 224.0.1.31 | ampr-info. |
| 224.0.1.32 | mtrace. |
| 224.0.1.33 | RSVP-encap-1. |
| 224.0.1.34 | RSVP-encap-2. |
| 224.0.1.35 | SVRLOC-DA. |
| 224.0.1.36 | rln-server. |
| 224.0.1.37 | proshare-mc. |
| 224.0.1.38 | — |
| 224.0.1.39 | cisco-rp-announce. |
| 224.0.1.40 | cisco-rp-discovery. |
| 224.0.1.41 | gatekeeper. |
| 224.0.1.42 | iberiagames. |
| 224.0.1.43 | nwn-discovery. |
| 224.0.1.44 | nwn-adaptor. |
| 224.0.1.45 | isma-1. |
| 224.0.1.46 | isma-2. |
| 224.0.1.47 | telerate. |
| 224.0.1.48 | ciena. |
| 224.0.1.49 | DCAP servers. |
| 224.0.1.50 | DCAP clients. |
| 224.0.1.51 | mcntp-directory. |
| 224.0.1.52 | mbone-vcr-directory. |
| 224.0.1.53 | heartbeat. |
| 224.0.1.54 | sun-mc-grp. |
| 224.0.1.55 | extended-sys. |
| 224.0.1.56 | pdrncs. |
| 224.0.1.57 | tns-adv-multi. |
| 224.0.1.58 | vcals-dmu. |
| 224.0.1.59 | zuba. |
| 224.0.1.60 | hp-device-disc. |
| 224.0.1.61 | tms-production. |
| 224.0.1.62 | sunscalar. |
| 224.0.1.63 | mmtp-poll. |
| 224.0.1.64 | compaq-peer. |
| 224.0.1.65 | iapp. |
| 224.0.1.66 | multihasc-com. |
| 224.0.2.1 | “rwho” Group (BSD) (unofficial) |
| 224.0.2.2 | SUN RPC PMAPPROC_CALLIT |
| 224.0.3.0-224.0.3.255 | RFE Generic Service |
| 224.0.4.0-224.0.4.255 | RFE Individual Conferences |
| 224.1.0.0-224.1.255.255 | ST Multicast Groups |
| 224.2.0.0-224.2.255.255 | Multimedia Conference Calls |
| 232.x.x.x | VMTP transient groups |
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