Hi I am not sure about the command to see the serial number on the chassis I think you should use the command to see the module installed
show diag output sample where you see "x" , that's where the serial numbers are router#sh diag Slot 0: Physical slot 0, ~physical slot 0xF, logical slot 0, CBus 0 Microcode Status 0x4 Master Enable, LED, WCS Loaded Board is analyzed Pending I/O Status: None EEPROM format version 1 VIP4-80 RM7000 controller, HW rev 2.04, board revision B0 Serial number: XXXXXXX Part number: 73-3143-09 Test history: 0x00 RMA number: 00-00-00 Flags: cisco 7000 board; 7500 compatible EEPROM contents (hex): 0x20: 01 22 02 04 01 78 5A 9A 49 0C 47 09 00 00 00 00 0x30: 58 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Slot database information: Flags: 0x4 Insertion time: 0x2610 (2d09h ago) Controller Memory Size: 128 MBytes CPU SDRAM, 64 MBytes Packet SDRAM PA Bay 0 Information: OC-12 ATM MM Port Adaptor, 1 ports EEPROM format version 1 HW rev 2.00, Board revision A0 Serial number: XXXXXXX Part number: 73-3310-02 >>> "Deepak Achar" 06/25 10:05 AM >>> hi can u just check the following command. router#sh tech-support it gives all information about the router. regards deepak n achar Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=47365&t=47361 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]