on the context from which you enter the command. Since physical characteristics can only be changed from the system context, more information is provided there. From the system context: ASA-5540# sho int go/o Interface GigabitEtherneto/o "", is administratively down, line protocol is down Hardware is i82546GB revo3, BW 1000 Mbps, DLY 10 usec Full-Duplex, 100 Mbps Available for allocation to a context MAC address 0026.0b31.36d8, MTU not set IP address unassigned 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort L2 decode drops 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets late collisions, 0 deferred 0 input reset drops, 0 output reset drops input queue (curr/max packets): hardware (o/o) software (o/o) output queue (curr/max packets): hardware (o/o) software (o/o) From within a regular context: ASA-5540/GAD# sho int go/o Interface GigabitEtherneto/o "inside", is down, line protocol is down MAC address 1200.0000.0700, MTU 1500 IP address 10.10.10.1, subnet mask 255.255.255.0 Traffic Statistics for "inside": 0 packets input, 0 bytes packets output, 0 bytes 0 packets dropped Names One of the more user-friendly features of the ASA and PIX os is the ability to display IP addresses as names. To enable this feature, enter the names command in configuration mode: ASA-5540/GAD(config)# names With the names feature enabled, you can configure any IP address to be associated with a name. This is similar in principle to a basic form of DNS, but the names are local to the ASA or PIX being configured. Say that 10.10.10.10 is the IP address of a server called Names FileServer. Using the name command, you can assign the name FileServer to the IP ad- dress within the ASA: ASA-5540/GAD(config)# name 10.10.10.10 FileServer You can then configure an access list like the following: ASA-5540/GAD(config)# access-list Dingle permit tcp any host 10.10.10.10 eq WWW Access lists, including features specific to 