R2(config)#access-list 2 permit host 192.168.11.10Īllow traffic only from network 192.168.10.0 /24 to 192.168.30.12 port 80 -> on output interface of R2 (router closest to destination) permit access EXTENDEDĪllow only ICMP traffic from network 192.168.10.0 /24 to 192.168.30.12 -> on output interface of R1 (router closest to source) permit access R2(config-if)#ip access-group DISABLE_1 outĪllow traffic only from specific host 192.168.11.10 /24 to 192.168.31.12 -> on output interface of R2 (router closest to destination) permit access R2(config)#ip access-list standard DISABLE_1 The last IP address range that is from 127.0.0.0 to 127.255.255.255 is reserved for the Loopback address. It means that the first octet has a number between 0 and 127, and the /8 means that the first octet is used to divide the networks. Significant bits are in 8-bit groups that form Class A, B, and C blocks of IP addresses.
Galván Espinosa Diego Tarea - VLSM Dirección 10.0.0.0/8 255.0.0. So, theoretically, the Class A IP address range from 0.0.0.0/8 to 127.255.255.255/8 (CIDR notation). It consists of a network prefix and the significant bits which determines the size of the IP block.
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