Sun-microsystems 1.0 Uživatelský manuál stáhnout pdf (Strana 112)

86 SunFDDI/P1.0 AdapterUser’sGuide—May1997

ChangingtheDefaultMACAddress(pf_macid)

Each attachment to an FDDI network is identified by a unique 48-bit MAC

address. By default, the first SunFDDI/P card takes the host-resident MAC

address, which is stored in nonvolatile memory (NVRAM) on the motherboard

of the machine. Each subsequent SunFDDI/P card adopts the card-resident

MAC address stored in its own IDPROM.

In general, this convention is sufficient to ensure that each SunFDDI/P card

installed in the machine has a unique MAC address. However, there may be a

conflict with other LAN interfaces that also take the host-resident MAC

address—for example, an Ethernet (le) interface, or a SunFDDI/P 2.0 (bf)

interface. In this event, change the default MAC address assigned to the first

SunFDDI/P card installed in the system.

▼ To Change the Default MAC Address with pf_macid

Use the pf_macid(1M) utility to recover the card-resident MAC address, and

then modify the system files to override the default MAC address:

1. Log in as root or become superuser.

2. Use the pf_macid(1M) utility to recover the MAC address from the

IDPROM on the SunFDDI/P interface identified by the instance number

<inst>.

3. Modify the start-up file on your machine so that the MAC address is

assigned correctly when the system is rebooted.

# <basedir>/pf_macid pf<inst>

<mac_address>

1 2 ... 107 108 109 110 111 112 113 114 115 116 117 ... 181 182

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