{"id":555,"date":"2019-03-14T01:02:53","date_gmt":"2019-03-14T00:02:53","guid":{"rendered":"http:\/\/10.10.6.137\/?page_id=555"},"modified":"2020-05-19T16:20:58","modified_gmt":"2020-05-19T15:20:58","slug":"subnet-mask","status":"publish","type":"page","link":"https:\/\/www.scubalife.eu\/en\/troche-teorii\/subnet-mask\/","title":{"rendered":"Subnet mask"},"content":{"rendered":"
<\/div>
RFC 1878<\/a><\/h6>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/th>\nAddresses<\/th>\nHosts<\/th>\nNetmask<\/th>\nAmount of a Class C<\/th>\n<\/tr>\n
\/30<\/th>\n4<\/td>\n2<\/td>\n255.255.255.252<\/td>\n1\/64<\/td>\n<\/tr>\n
\/29<\/th>\n8<\/td>\n6<\/td>\n255.255.255.248<\/td>\n1\/32<\/td>\n<\/tr>\n
\/28<\/th>\n16<\/td>\n14<\/td>\n255.255.255.240<\/td>\n1\/16<\/td>\n<\/tr>\n
\/27<\/th>\n32<\/td>\n30<\/td>\n255.255.255.224<\/td>\n1\/8<\/td>\n<\/tr>\n
\/26<\/th>\n64<\/td>\n62<\/td>\n255.255.255.192<\/td>\n1\/4<\/td>\n<\/tr>\n
\/25<\/th>\n128<\/td>\n126<\/td>\n255.255.255.128<\/td>\n1\/2<\/td>\n<\/tr>\n
\/24<\/th>\n256<\/td>\n254<\/td>\n255.255.255.0<\/td>\n1<\/td>\n<\/tr>\n
\/23<\/th>\n512<\/td>\n510<\/td>\n255.255.254.0<\/td>\n2<\/td>\n<\/tr>\n
\/22<\/th>\n1024<\/td>\n1022<\/td>\n255.255.252.0<\/td>\n4<\/td>\n<\/tr>\n
\/21<\/th>\n2048<\/td>\n2046<\/td>\n255.255.248.0<\/td>\n8<\/td>\n<\/tr>\n
\/20<\/th>\n4096<\/td>\n4094<\/td>\n255.255.240.0<\/td>\n16<\/td>\n<\/tr>\n
\/19<\/th>\n8192<\/td>\n8190<\/td>\n255.255.224.0<\/td>\n32<\/td>\n<\/tr>\n
\/18<\/th>\n16384<\/td>\n16382<\/td>\n255.255.192.0<\/td>\n64<\/td>\n<\/tr>\n
\/17<\/th>\n32768<\/td>\n32766<\/td>\n255.255.128.0<\/td>\n128<\/td>\n<\/tr>\n
\/16<\/th>\n65536<\/td>\n65534<\/td>\n255.255.0.0<\/td>\n256<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n

Guide to sub-class C blocks<\/h2>\n\n\n\n
\n

\/25 — 2 Subnets — 126 Hosts\/Subnet<\/p>\n\n\n\n\n\n
Network #<\/th>\nIP Range<\/th>\nBroadcast<\/th>\n<\/tr>\n
.0<\/td>\n.1-.126<\/td>\n.127<\/td>\n<\/tr>\n
.128<\/td>\n.129-.254<\/td>\n.255<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n\n

\/30 — 64 Subnets — 2 Hosts\/Subnet<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Network #<\/th>\nIP Range<\/th>\nBroadcast<\/th>\n<\/tr>\n
.0<\/td>\n.1-.2<\/td>\n.3<\/td>\n<\/tr>\n
.4<\/td>\n.5-.6<\/td>\n.7<\/td>\n<\/tr>\n
.8<\/td>\n.9-.10<\/td>\n.11<\/td>\n<\/tr>\n
.12<\/td>\n.13-.14<\/td>\n.15<\/td>\n<\/tr>\n
.16<\/td>\n.17-.18<\/td>\n.19<\/td>\n<\/tr>\n
.20<\/td>\n.21-.22<\/td>\n.23<\/td>\n<\/tr>\n
.24<\/td>\n.25-.26<\/td>\n.27<\/td>\n<\/tr>\n
.28<\/td>\n.29-.30<\/td>\n.31<\/td>\n<\/tr>\n
.32<\/td>\n.33-.34<\/td>\n.35<\/td>\n<\/tr>\n
.36<\/td>\n.37-.38<\/td>\n.39<\/td>\n<\/tr>\n
.40<\/td>\n.41-.42<\/td>\n.43<\/td>\n<\/tr>\n
.44<\/td>\n.45-.46<\/td>\n.47<\/td>\n<\/tr>\n
.48<\/td>\n.49-.50<\/td>\n.51<\/td>\n<\/tr>\n
.52<\/td>\n.53-.54<\/td>\n.55<\/td>\n<\/tr>\n
.56<\/td>\n.57-.58<\/td>\n.59<\/td>\n<\/tr>\n
.60<\/td>\n.61-.62<\/td>\n.63<\/td>\n<\/tr>\n
.64<\/td>\n.65-.66<\/td>\n.67<\/td>\n<\/tr>\n
.68<\/td>\n.69-.70<\/td>\n.71<\/td>\n<\/tr>\n
.72<\/td>\n.73-.74<\/td>\n.75<\/td>\n<\/tr>\n
.76<\/td>\n.77-.78<\/td>\n.79<\/td>\n<\/tr>\n
.80<\/td>\n.81-.82<\/td>\n.83<\/td>\n<\/tr>\n
.84<\/td>\n.85-.86<\/td>\n.87<\/td>\n<\/tr>\n
.88<\/td>\n.89-.90<\/td>\n.91<\/td>\n<\/tr>\n
.92<\/td>\n.93-.94<\/td>\n.95<\/td>\n<\/tr>\n
.96<\/td>\n.97-.98<\/td>\n.99<\/td>\n<\/tr>\n
.100<\/td>\n.101-.102<\/td>\n.103<\/td>\n<\/tr>\n
.104<\/td>\n.105-.106<\/td>\n.107<\/td>\n<\/tr>\n
.108<\/td>\n.109-.110<\/td>\n.111<\/td>\n<\/tr>\n
.112<\/td>\n.113-.114<\/td>\n.115<\/td>\n<\/tr>\n
.116<\/td>\n.117-.118<\/td>\n.119<\/td>\n<\/tr>\n
.120<\/td>\n.121-.122<\/td>\n.123<\/td>\n<\/tr>\n
.124<\/td>\n.125-.126<\/td>\n.127<\/td>\n<\/tr>\n
.128<\/td>\n.129-.130<\/td>\n.131<\/td>\n<\/tr>\n
.132<\/td>\n.133-.134<\/td>\n.135<\/td>\n<\/tr>\n
.136<\/td>\n.137-.138<\/td>\n.139<\/td>\n<\/tr>\n
.140<\/td>\n.141-.142<\/td>\n.143<\/td>\n<\/tr>\n
.144<\/td>\n.145-.146<\/td>\n.147<\/td>\n<\/tr>\n
.148<\/td>\n.149-.150<\/td>\n.151<\/td>\n<\/tr>\n
.152<\/td>\n.153-.154<\/td>\n.155<\/td>\n<\/tr>\n
.156<\/td>\n.157-.158<\/td>\n.159<\/td>\n<\/tr>\n
.160<\/td>\n.161-.162<\/td>\n.163<\/td>\n<\/tr>\n
.164<\/td>\n.165-.166<\/td>\n.167<\/td>\n<\/tr>\n
.168<\/td>\n.169-.170<\/td>\n.171<\/td>\n<\/tr>\n
.172<\/td>\n.173-.174<\/td>\n.175<\/td>\n<\/tr>\n
.176<\/td>\n.177-.178<\/td>\n.179<\/td>\n<\/tr>\n
.180<\/td>\n.181-.182<\/td>\n.183<\/td>\n<\/tr>\n
.184<\/td>\n.185-.186<\/td>\n.187<\/td>\n<\/tr>\n
.188<\/td>\n.189-.190<\/td>\n.191<\/td>\n<\/tr>\n
.192<\/td>\n.193-.194<\/td>\n.195<\/td>\n<\/tr>\n
.196<\/td>\n.197-.198<\/td>\n.199<\/td>\n<\/tr>\n
.200<\/td>\n.201-.202<\/td>\n.203<\/td>\n<\/tr>\n
.204<\/td>\n.205-.206<\/td>\n.207<\/td>\n<\/tr>\n
.208<\/td>\n.209-.210<\/td>\n.211<\/td>\n<\/tr>\n
.212<\/td>\n.213-.214<\/td>\n.215<\/td>\n<\/tr>\n
.216<\/td>\n.217-.218<\/td>\n.219<\/td>\n<\/tr>\n
.220<\/td>\n.221-.222<\/td>\n.223<\/td>\n<\/tr>\n
.224<\/td>\n.225-.226<\/td>\n.227<\/td>\n<\/tr>\n
.228<\/td>\n.229-.230<\/td>\n.231<\/td>\n<\/tr>\n
.232<\/td>\n.233-.234<\/td>\n.235<\/td>\n<\/tr>\n
.236<\/td>\n.237-.238<\/td>\n.239<\/td>\n<\/tr>\n
.240<\/td>\n.241-.242<\/td>\n.243<\/td>\n<\/tr>\n
.244<\/td>\n.245-.246<\/td>\n.247<\/td>\n<\/tr>\n
.248<\/td>\n.249-.250<\/td>\n.251<\/td>\n<\/tr>\n
.252<\/td>\n.253-.254<\/td>\n.255<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
\n

\/26 — 4 Subnets — 62 Hosts\/Subnet<\/p>\n\n\n\n\n\n\n\n\n
Network #<\/th>\nIP Range<\/th>\nBroadcast<\/th>\n<\/tr>\n
.0<\/td>\n.1-.62<\/td>\n.63<\/td>\n<\/tr>\n
.64<\/td>\n.65-.126<\/td>\n.127<\/td>\n<\/tr>\n
.128<\/td>\n.129-.190<\/td>\n.191<\/td>\n<\/tr>\n
.192<\/td>\n.193-.254<\/td>\n.255<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
\n

\/27 — 8 Subnets — 30 Hosts\/Subnet<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
Network #<\/th>\nIP Range<\/th>\nBroadcast<\/th>\n<\/tr>\n
.0<\/td>\n.1-.30<\/td>\n.31<\/td>\n<\/tr>\n
.32<\/td>\n.33-.62<\/td>\n.63<\/td>\n<\/tr>\n
.64<\/td>\n.65-.94<\/td>\n.95<\/td>\n<\/tr>\n
.96<\/td>\n.97-.126<\/td>\n.127<\/td>\n<\/tr>\n
.128<\/td>\n.129-.158<\/td>\n.159<\/td>\n<\/tr>\n
.160<\/td>\n.161-.190<\/td>\n.191<\/td>\n<\/tr>\n
.192<\/td>\n.193-.222<\/td>\n.223<\/td>\n<\/tr>\n
.224<\/td>\n.225-.254<\/td>\n.255<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
\n

\/28 — 16 Subnets — 14 Hosts\/Subnet<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Network #<\/th>\nIP Range<\/th>\nBroadcast<\/th>\n<\/tr>\n
.0<\/td>\n.1-.14<\/td>\n.15<\/td>\n<\/tr>\n
.16<\/td>\n.17-.30<\/td>\n.31<\/td>\n<\/tr>\n
.32<\/td>\n.33-.46<\/td>\n.47<\/td>\n<\/tr>\n
.48<\/td>\n.49-.62<\/td>\n.63<\/td>\n<\/tr>\n
.64<\/td>\n.65-.78<\/td>\n.79<\/td>\n<\/tr>\n
.80<\/td>\n.81-.94<\/td>\n.95<\/td>\n<\/tr>\n
.96<\/td>\n.97-.110<\/td>\n.111<\/td>\n<\/tr>\n
.112<\/td>\n.113-.126<\/td>\n.127<\/td>\n<\/tr>\n
.128<\/td>\n.129-.142<\/td>\n.143<\/td>\n<\/tr>\n
.144<\/td>\n.145-.158<\/td>\n.159<\/td>\n<\/tr>\n
.160<\/td>\n.161-.174<\/td>\n.175<\/td>\n<\/tr>\n
.176<\/td>\n.177-.190<\/td>\n.191<\/td>\n<\/tr>\n
.192<\/td>\n.193-.206<\/td>\n.207<\/td>\n<\/tr>\n
.208<\/td>\n.209-.222<\/td>\n.223<\/td>\n<\/tr>\n
.224<\/td>\n.225-.238<\/td>\n.239<\/td>\n<\/tr>\n
.240<\/td>\n.241-.254<\/td>\n.255<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
\n

\/29 — 32 Subnets — 6 Hosts\/Subnet<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Network #<\/th>\nIP Range<\/th>\nBroadcast<\/th>\n<\/tr>\n
.0<\/td>\n.1-.6<\/td>\n.7<\/td>\n<\/tr>\n
.8<\/td>\n.9-.14<\/td>\n.15<\/td>\n<\/tr>\n
.16<\/td>\n.17-.22<\/td>\n.23<\/td>\n<\/tr>\n
.24<\/td>\n.25-.30<\/td>\n.31<\/td>\n<\/tr>\n
.32<\/td>\n.33-.38<\/td>\n.39<\/td>\n<\/tr>\n
.40<\/td>\n.41-.46<\/td>\n.47<\/td>\n<\/tr>\n
.48<\/td>\n.49-.54<\/td>\n.55<\/td>\n<\/tr>\n
.56<\/td>\n.57-.62<\/td>\n.63<\/td>\n<\/tr>\n
.64<\/td>\n.65-.70<\/td>\n.71<\/td>\n<\/tr>\n
.72<\/td>\n.73-.78<\/td>\n.79<\/td>\n<\/tr>\n
.80<\/td>\n.81-.86<\/td>\n.87<\/td>\n<\/tr>\n
.88<\/td>\n.89-.94<\/td>\n.95<\/td>\n<\/tr>\n
.96<\/td>\n.97-.102<\/td>\n.103<\/td>\n<\/tr>\n
.104<\/td>\n.105-.110<\/td>\n.111<\/td>\n<\/tr>\n
.112<\/td>\n.113-.118<\/td>\n.119<\/td>\n<\/tr>\n
.120<\/td>\n.121-.126<\/td>\n.127<\/td>\n<\/tr>\n
.128<\/td>\n.129-.134<\/td>\n.135<\/td>\n<\/tr>\n
.136<\/td>\n.137-.142<\/td>\n.143<\/td>\n<\/tr>\n
.144<\/td>\n.145-.150<\/td>\n.151<\/td>\n<\/tr>\n
.152<\/td>\n.153-.158<\/td>\n.159<\/td>\n<\/tr>\n
.160<\/td>\n.161-.166<\/td>\n.167<\/td>\n<\/tr>\n
.168<\/td>\n.169-.174<\/td>\n.175<\/td>\n<\/tr>\n
.176<\/td>\n.177-.182<\/td>\n.183<\/td>\n<\/tr>\n
.184<\/td>\n.185-.190<\/td>\n.191<\/td>\n<\/tr>\n
.192<\/td>\n.193-.198<\/td>\n.199<\/td>\n<\/tr>\n
.200<\/td>\n.201-.206<\/td>\n.207<\/td>\n<\/tr>\n
.208<\/td>\n.209-.214<\/td>\n.215<\/td>\n<\/tr>\n
.216<\/td>\n.217-.222<\/td>\n.223<\/td>\n<\/tr>\n
.224<\/td>\n.225-.230<\/td>\n.231<\/td>\n<\/tr>\n
.232<\/td>\n.233-.238<\/td>\n.239<\/td>\n<\/tr>\n
.240<\/td>\n.241-.246<\/td>\n.247<\/td>\n<\/tr>\n
.248<\/td>\n.249-.254<\/td>\n.255<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n
\u00a0<\/address>\n
<\/div>
\n \n \"Fb-Button\"\n <\/a>\n <\/div>
<\/fb:like><\/div>
<\/div><\/div>","protected":false},"excerpt":{"rendered":"

RFC 1878 Addresses Hosts Netmask Amount of a Class C \/30 4 2 255.255.255.252 1\/64…<\/p>\n

\n \n \"Fb-Button\"\n <\/a>\n <\/div>
<\/fb:like><\/div>
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