configure
To gain access from one internal segment to the Demilitarized Zone (DMZ ), configure the Adaptive Security Appliance (ASA) for natting. To preserve the packet and assure that natting is bypassed, a no nat statement with an Access Control List (ACL) must be configured. This is performed when the administrator does not want natting to [...]
Cisco, Firewall accesses, acl, asa, command, configuration, configure, connection, determine, hosts, interface, listing, nat, port, ports, secure, Security,
The Dynamic Host Configuration Protocol (DHCP) daemon must be enabled to listen for DHCP client requests. When the PIX Firewall acts as a DHCP server, PIX provides network configuration parameters to DHCP clients. Dynamically assigned IP addresses are an example for network configuration parameters. These configuration parameters provide a DHCP client with the networking parameters [...]
Cisco, Firewall accesses, activation, bind, client, configuration, configure, connection, daemons, DHCP, enable, firewall, functionality, hosts, interface, mac, network, networking, pix, protocol, replication, router, server, servers, services, system, systems,
The PIX/ASA can be configured in order to capture packet information like a sniffer that can be later viewed. There are two ways to do this. In order to capture the packets and later download them to view in ethereal (pcap format), complete these steps: Create an access-list in order to match the traffic. Apply [...]
Cisco, Firewall asa, command, configuration, configure, create, file, format, hosts, interface, pix, putty, traffic,
Configure static Port Address Translation (PAT) on the PIX. Starting with PIX Software version 6.0, the PIX can be configured to translate ports destined to a single global IP address to multiple internal servers. One place this would be useful is if you only have a single IP address available from your ISP, but your [...]
Cisco, Firewall accesses, cisco, command, configuration, configure, connection, difference, hosts, interface, listing, multiple, nat, netmask, pix, port, ports, redirection, server, servers,
To configure MS-Exchange connectivity through a PIX Firewall, perform the following steps: 1. Create the static translation for the MS-Exchange server inside address so it can be seen by its public routable address from the outside. Traffic received by the PIX on the outside address of the MS-Exchange server is translated by the PIX and [...]
Cisco, Firewall accesses, acl, asa, configuration, configure, connection, create, firewall, hosts, interface, listing, machine, network, networking, pix, port, ports, server, servers, traffic,
It is a recommended practice to backup the configuration of the PIX Firewall for use in emergencies or for disaster recovery. But, the PIX does not support an external Flash card. The internal Flash does not support the backup of the configuration file. The configuration file must be saved externally. The PIX configuration file can [...]
Cisco, Firewall Backup, configuration, configure, Emergency, file, firewall, install, pix, server, servers, services,
To disable SIP inspection on particular interface following steps are required :- Remove SIP inspection from global policy Create a new policy for inspecting SIP Apply it to all the other interfaces. Refer to following configuration example:- hostname(config)# policy-map global_policy hostname(config-pmap)# class-map inspection_default hostname(config-pmap)# no inspect sip hostname(config-pmap)#exit hostname(config)# policy-map sip_policy hostname(config-pmap)# class-map inspection_default hostname(config-pmap)# inspect [...]
Cisco, Firewall asa, configuration, configure, create, enable, interface, pix, sip,
In order to create a user in the ASA, use the username command in global configuration mode. For example: hostname(config)#username password privilege In order to include or exclude user authentication for traffic through the ASA, use the aaa authentication commands with the include or exclude keywords in global configuration mode.
Cisco, Firewall asa, authenticate, command, configuration, configure, create, passwords, privilege, privileges, secure, Security, traffic,
With PIX/ASA version 7.0 and later, a new feature is introduced that allows the PIX to support hairpinning in a VPN environment. When the PIX/ASA is the hub in a VPN environment, this feature supports spoke-to-spoke VPN communications as it provides the ability for encrypted traffic to enter and leave the same interface. If the [...]
Cisco, Firewall asa, command, community, configuration, configure, connection, create, firewall, hosts, interface, pix, router, traffic, VPN,
By default, the security appliance allows IPsec packets to bypass interface access control lists (ACLs). In order to allow specific traffic for a VPN tunnel, apply interface access lists. Complete these steps (apart from the basic VPN configuration) on the PIX/ASA: 1. Use the no form of these commands in order to disable sysopt connection [...]
Cisco, Firewall accesses, acl, asa, bind, command, configuration, configure, connection, create, group, interface, listing, pix, port, ports, protocol, secure, Security, traffic, VPN,
In many cases, it is necessary to block connectivity to Instant Messaging (IM) services, such as AOL Instant Messenger, Yahoo Instant Messenger, and ICQ. In order to accomplish this, block the ports that those clients use. Ports used by IM services are dynamic. You can block the IP addresses and the port numbers used by [...]
Cisco, Firewall accesses, acl, asa, check, client, command, configuration, configure, connection, create, firewall, Generator, interface, listing, logs, msn, network, networking, pix, port, ports, protocol, services, stop, traffic, yahoo,
There are the two ways to allow traffic to pass through the PIX Firewall without translating the source address: * Issue the no nat command. The nat (inside) 0 0.0.0.0 0.0.0.0 command allows traffic to pass from the inside to the outside without translating the source addresses, but this version of the nat 0 command [...]
Cisco, Firewall accesses, acl, bases, command, configuration, configure, create, firewall, interface, listing, nat, netmask, pix, source, table, traffic,
The PIX Firewall does not support the initiation of the traceroute command as it is not part of the PIX command set. However, it can be configured to allow traceroute through it. When a traceroute command is issued from the outside, the PIX does not display its own interface IP address nor does it display [...]
Cisco, Firewall bases, client, command, configuration, configure, create, enable, firewall, interface, machine, multiple, nat, network, networking, pix, port, ports, protocol, router, server, servers, source, targeted,
In many cases it is noticed that long URLs are dropped by the PIX Firewall. This problem is especially noticed when integrated with the URL filter. By default, if a URL exceeds the maximum permitted size, then it is dropped. In order to avoid this, enter this command to set the security appliance to truncate [...]
Cisco, Firewall command, configuration, configure, firewall, hostname, pix, secure, Security, server, servers, traffic,
This contains a procedure that allows Remote Desktop Protocol (RDP) connections through the PIX Firewall. The RDP connections from the outside interface toward the inside are allowed with the help of a combination of the access-list command and the static command. The RDP works on the Transmission Control Protocol (TCP) port number 3389. Therefore, it is necessary to [...]
Cisco, Firewall command, configuration, configure, connection, firewall, help, hosts, interface, pix, port, ports, protocol, server, servers,
