ip nat命令的解释_百度文库
Addresses Netmask Amount of a Class C /31: 2: 255.255.255.254: 1/128 /30: 4: 255.255.255.252: 1/64 /29: 8: 255.255.255.248: 1/32 /28: 16: 255.255.255.240: 1/16 /27 The wildcard is the inverse netmask used for access control lists (ACL's) in Cisco routers. This free online IPv4 subnet calculator also can be used as a teaching tool and presents the subnetting results as easy-to-understand binary values. IP Subnet Calculator. This calculator returns a variety of information regarding Internet Protocol version 4 (IPv4) and IPv6 subnets including possible network addresses, usable host ranges, subnet mask, and IP class, among others. Enter your netmask(s) in CIDR notation (/25) or dotted decimals (255.255.255.0). Inverse netmasks are recognized. If you omit the netmask ipcalc uses the default netmask for the class of your network. Look at the space between the bits of the addresses: The bits before it are the network part of the address, the bits after it are the host part. Size: 1. Netmask: 255.255.255.255 or /32 Any address. Note: This is a rather small subnet. Size: 2. Netmask: 255.255.255.254 or /31 Starts with even address. The subnet calculator implements a classful / classed IP addressing scheme where the following rules are adhered to: Class A addresses have their first octet in the range 1 to 126 (binary address begins with 0). Example IP Address Inputs IP & CIDR Netmask: 10.0.0.1/8 IP & Netmask: 192.168.0.1 255.255.255.240 IP & Wildcard mask: 172.16.2.1 0.0.1.255 *Note: Wildcard mask is
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Subnet Calculator How To Use. To use: Input IP Address in dotted-decimal format (e.g. 10.0.0.1). Classful calculation is based on classful network addressing architecture.
Mar 23, 2020 · 255.255.255.0 is the most common subnet mask used on home networks and other local area TCP/IP networks.