GASKET 7L2905 - Caterpillar

TCP/IP and Communication Settings
TCP/IP Settings
Path: Administration > Network > TCP/IP > IPv4 settings
The "TCP/IP" option on the left navigation menu, selected by default when you choose "Network" on the top menu bar, displays the current IPv4 address, subnet mask, default gateway, MAC address, and boot mode of the UPS Network Management Card (NMC).Enable - Enable or disable IPv4 with this check box.Manual - Configure IPv4 manually by entering the IP address, subnet mask, and default gateway.BOOTP - A BOOTP server provides the TCP/IP settings. At 32-second intervals, the NMC requests network assignment from any BOOTP server:
If the NMC receives a valid response, the NMC starts the network services.
If the NMC finds a BOOTP server, but a request to that server fails or times out, the NMC stops requesting network settings until the NMC is restarted.
By default, if previously configured network settings exist, and the NMC receives no valid response to five requests (the original and four retries), the NMC uses the previously configured settings so that the NMC remains accessible.Click "Next>>" to access the BOOTP Configuration page to change the number of retries or the action to take if all retries fail :
"Maximum retries": Enter the number of retries that will occur when no valid response is received, or zero (0) for an unlimited number of retries.
"If retries fail": Select "Use prior settings" (the default) or "Stop BOOTP request".The default values for these three settings on the configuration pages generally do not need changed:
"Vendor Class" : CAT
"Client ID" : The MAC address of the Network Management Card, which uniquely identifies the ID on the local area network (LAN)
"User Class" : The name of the application firmware moduleDHCP - The default setting. At 32-second intervals, the NMC requests network assignment from any DHCP server.
If the NMC receives a valid response, the NMC does not (as previously) require the CAT cookie from the DHCP server in order to accept the lease and start the network services.
If the NMC finds a DHCP server, but the request to that server fails or times out, the NMC stops requesting network settings until the NMC is restarted.
Require vendor-specific cookie to accept DHCP Address: By selecting this check box, you can require the DHCP server to provide a cookie which supplies information to the NMC.DHCP Response Options
Each valid DHCP response contains options that provide the TCP/IP settings that the NMC needs to operate on a network. The response also contains other information that affects the operation of the NMC.Vendor Specific Information (option 43)
The NMC uses this option in a DHCP response to determine whether the DHCP response is valid. This option contains an option in a TAG/LEN/DATA format, called the CAT Cookie. This option is disabled by default.
CAT Cookie. Tag 1, Len 4, Data "1CAT"Option 43 communicates to the NMC that a DHCP server is configured to service devices.Following, in hexadecimal format, is an example of a Vendor Specific Information option that contains the cookie:"Option 43 = 0x01 0x04 0x31 0x41 0x50 0x43"TCP/IP Options
The NMC