?? protocols
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## @(#)protocols 4.1 (ULTRIX) 7/2/90# Internet (IP) protocols#ip 0 IP # internet protocol, pseudo protocol numbericmp 1 ICMP # internet control message protocolggp 3 GGP # gateway-gateway protocoltcp 6 TCP # transmission control protocolpup 12 PUP # PARC universal packet protocoludp 17 UDP # user datagram protocol?? 快捷鍵說明
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