The ARP cache is a table that stores the correlatedĪddresses of the devices for which the router facilitates data transmissions.ĪRP to find the MAC address of the device assigned to the packet’sĭestination IP address. (ARP) is a protocol that maps IP addresses to MAC addresses that local Referring to wildcard notation, CIDR notation specifies the number of leading zeros in the CIDR notation: CIDR notation specifies the scope of the subnet space by using aĭecimal number to identify the number of leading ones in the routing prefix.Some commands use wildcard masks instead of Subnet masks in that the bits are inverted. IP address and wildcard mask: The wildcard mask is a 32-bit number (dottedĭecimal notation) that specifies the subnet address space.The subnet address space is calculatedīy performing an AND operation between the IP address and subnet mask. Notation) that specifies the subnet address space. IP address and subnet mask: The subnet mask is a 32-bit number (dotted decimal.The switch supports the following subnet formats: A subnet is identified by an IP address and an address IPv4 addresses are composed of 32 bits, expressed in dotted decimal notation by four decimalĢ55.

Linux get default route mac address