mask ffff0000 broadcast 172.16.255.255 ether 00:13:ba:da:d1:ca Then, take the MAC address (shown on the last line) and include it in the IOS com- mand show mac-address-table include mac-address: Switch1-IOS> sho mac-address-table I include 0013.bada.d1ca 18 0013.bada.61ca dynamic Yes Gi3/22 Take notice of the format when using MAC addresses, as different sys- items display MAC addresses differently. You'll need to convert the address to the appropriate format for IOS or CatOS. IOS displays each group of two-byte pairs separated by a period. Solaris and most other operating systems display each octet separated by a colon or hyphen (CatOS uses a hyphen as the delimiter when displaying MAC addresses in hexidecimal). Some systems may also display MAC addresses in decimal, while others use hexadecimal. Switches The output from the preceding command shows that port Gi3/22 is where our server is connected. On a switch running CatOS, this is accomplished a little differently because the show cam command contains an option to show a specific MAC address: Switch1-Catos: (enable) sho cam 00-00-13-ba-da-d1-ca * = Static Entry. + = Permanent Entry. # = System Entry. R = Router Entry. X = Port Security Entry $ = Dot1x Security Entry Dest MAC/Route Des [CoS] Destination Ports or VCs / [Protocol Type] 00-13-ba-da-d1-ca 3/48 [ALL] Total Matching CAM Entries Displayed =1 Switch Types Cisco switches can be divided into two types: fixed-configuration and modular switches. Fixed-configuration switches are smaller-usually 1 rack unit (RU) in size. These switches typically contain nothing but Ethernet ports, and are designed for situations where larger switches are unnecessary. Examples of fixed-configuration switches include the Cisco 2950, 3550, and 3750 switches. The 3750 is capable of being stacked. Stacking is a way of connecting mul- tiple switches together to form a single logical switch. This can be useful when more than the maximum number of ports available on a single fixed-configuration switch (48) are needed. The limitation