yookillo.blogg.se

ISP(config-if)#no shutdown Configure DHCP server and DNS server on Cisco ASA ISP(config)#interface gigabitEthernet 0/1 Router ISP ISP(config)#interface gigabitEthernet 0/0 Topology Configuration Assign IP on Cisco ASA and ISP Router and set Interface Inside and Outside on Cisco ASAĬisco ASA ciscoasa(config)#interface vlan 1Ĭiscoasa(config)#no dhcpd address 192.168.1.5-192.168.1.35 insideĬiscoasa(config-if)#ip address 172.16.1.1 255.255.255.0Ĭiscoasa(config-if)#ip address 203.1.1.2 255.255.255.0Ĭiscoasa(config-if)#switchport access vlan 1Ĭiscoasa(config-if)#switchport access vlan 2

They establish a barrier between secured and controlled internal networks that can be trusted and untrusted outside networks, such as the Internet.Ī firewall can be hardware, software, or both. A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules.įirewalls have been a first line of defense in network security for over 25 years.