| ht (hardware type) set to 1 (=10Mb ethernet). |
| ha (hardware address) the ethernet address of the unit. |
| ip (internet address) enter the ip address to assign to the unit. |
| sm (subnet mask) enter the subnet mask of the unit. |
| hn (host name) enter as :hn:\ which causes the name at the start of the |
| file (Console Server_blue) to be allocated to this unit. |
| bf (bootfile name) enter the name of the file containing specific |
| configuration information; see An example bootfile on page 234. |
| ds (domain servers)enter the ip address of up to two nameservers. |
| gw (gateway)enter the ip address of a single passive gateway |
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Caution | use the ‘gw’ flag only in very specific circumstances; see Note 5. below. |
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Notes on the above BOOTP tags:
1.Specify the fields that you wish; you do not have to specify all of them. E.g. if you wish to download only the internet address to the unit, specify the ip field (you must specify - as a minimum - the ha and ht fields).
2.If the subnet mask (sm) has not been explicitly specified by a BOOTPREPLY packet, it will be derived from the class of internet address.
3.If domain name servers are specified their port number will always be set to the default for a name server (53).
4.If you require a bootfile (bf) it must be on the same host as the bootptab file entry.
5.include the gw (gateway) flag only if your BOOTP server is on a different network and your gateway (or router) is not configured to support RIP.
The effect of using the ‘gw’ field is:
-to make only this gateway available in the unit; it will be a passive gateway. You can view the details of the gateway only in the cli, using the ‘show routes’ command.
-to turn off RIP in the unit; i.e. the unit will ignore RIP messages broadcast on the network
-the unit will ignore gateways
-you delete the gateway as follows: omit the ‘gw’ field in the bootptab file entry and
Black Box Console Server user guide | 232 |
