Olicom 8605, 8600 manual BootP Requests and Parameters

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BootP Requests and Parameters

When using BootP to determine its IP address, the switch repeats BootP requests at regular intervals, beginning at one second each and eventually decreasing to every five minutes over time until it receives a valid reply. If the IP display for the VLAN is accessed from the console (or via Telnet from another VLAN) during that time, the switch may cease using BootP if the parameters are set (on display exit) in such a way that BootP would no longer be necessary - for instance, if the IP state is switched from BootP Always to IP-Disabledor if an IP address different from

0.0.0.0or 192.0.2.1 is specified in any IP state.

Once the switch has stopped sending BootP requests on a VLAN, it does not restart sending requests on that VLAN and does not recognize BootP responses on that VLAN unless the switch is reset.

Besides the switch's IP address, several other parameters in a BootP response are also recognized and recorded in NVRAM, when received in the same response:

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•

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Default Gateway (see note below)

Subnet Mask

TFTP Bootfile Name

TFTP Server Address (only recognized if the Bootfile name is present)

One other parameter, the TFTP VLAN, is inferred whenever a TFTP Bootfile name is present in the BootP response. That is, if the switch receives a BootP response that specifies a TFTP Bootfile name, the switch automatically records the VLAN on which the response was received as the TFTP VLAN number. Therefore, the bootfile name should not be specified on a VLAN from which the TFTP server cannot be accessed, either directly or through the VLAN’s default gateway (if one exists). More information on TFTP is available under the section "TFTP" on page 139 in this chapter.

➽Note: The default gateway accepted is the first one in the list of routers whose net/ subnet address is the same as that of the IP address specified. If no routers are specified or if none qualify, the gateway address for the VLAN will be zeroed out and recorded as such in NVRAM when the IP screen is exited.

CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Switch Configuration