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패스워드
아래의 링크에서 테이블을 찾아보면 서브네트워킹이 무엇인지 확연히 알수 있습니다. 딱 40개가 안나오는 이유도 확실하게 알수 있습니다. http://www.ibiblio.org/pub/Linux/docs/HOWTO/mini/IP-Subnetworking ......... ..... For our C Class network number of 192.168.1.0, these are some of the sub-networking options you have:- No of No of subnets Hosts/net netmask ----------------------------------------------------------------------- 2 126 255.255.255.128 (11111111.11111111.11111111.10000000) 4 62 255.255.255.192 (11111111.11111111.11111111.11000000) 8 30 255.255.255.224 (11111111.11111111.11111111.11100000) 16 14 255.255.255.240 (11111111.11111111.11111111.11110000) 32 6 255.255.255.248 (11111111.11111111.11111111.11111000) 64 2 255.255.255.252 (11111111.11111111.11111111.11111100) ----------------------------------------------------------------------- In principle, there is absolutely no reason to follow the above way of subnetworking where network mask bits are added from the most significant host bit to the least significant host bit. However, if you do not do it this way, the resulting IP numbers will be in a very odd sequence! This makes it extremely difficult for us humans to decide to which subnetwork an IP number belongs as we are not too good at thinking in binary (computers on the other hand are and will use whatever scheme you tell them with equal equanimity). Having decided on the appropriate netmask, you then need to work out what the various Network and broadcast addresses are - and the IP number range for each of these networks. Again, considering only a C Class IP Network number and listing only the final (host part) we have:- Netmask Subnets Network B'cast MinIP MaxIP Hosts Total Hosts -------------------------------------------------------------------- 128 2 0 127 1 126 126 128 255 129 254 126 252 192 4 0 63 1 62 62 64 127 65 126 62 128 191 129 190 62 192 255 193 254 62 248 224 8 0 31 1 30 30 32 63 33 62 30 64 95 65 94 30 96 127 97 126 30 128 159 129 158 30 160 191 161 190 30 192 223 193 222 30 224 255 225 254 30 240 -------------------------------------------------------------------- : 질문이 있는데요 최대 40개의 호스트를 지원할 수 있도록 네트워크를 : 구현하고자 할 경우 C class에서 서브넷 마스크는 어떻게 줘야 하나요? : 꼭 좀 답변 주세요~~ 초보의 질문 이었습니다 ^^;
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