Page 28 of 206 Planning
553-3001-304 Standard 3.00 September 2004
IP address planning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Planning worksheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
DHCP server planning
The WLAN Handsets 2210/2211 IP-related parameters can be configured
manually or through a DHCP server (RFC 1541 and RFC 1533). Any DHCP
server can be used, but it must support the following capabilities.
Note: There is no partial DHCP mode, as there is with an IP Phone 2004.
Therefore, the DHCP server must support the options marked with a “*”.
• * Provide Client IP address
• * DHCP Option 1 – Subnet Mask
• * DHCP Option 3 – Default Gateway
• * DHCP Option 60 – Class Identifier. The wireless handsets use the
Class Identifier of “Nortel- 221x-A”. The DHCP server can use the string
in the Class Identifier to uniquely identify a wireless handset.
• * DHCP Option 66. This can be used to specify the address of the TFTP
Server. If this option is not configured, the wireless handset looks at the
Next server/ Boot server (siaddr) Option for the address of the TFTP
Server* Vendor Specific Option 43, 128, 144, 157, 191, or 251. Only one
of these options is required. The DHCP server encodes the Server 1
information using the same format as the IP Phone 2004. If the Server 2
information is also present in the option, it is ignored.
• * DHCP Option 151. This option contains the IP address of the WLAN
IP Telephony Manager 2245. If Option 151 is not configured, the
wireless handset performs a DNS lookup of the name “SLNKSVP2”, if
Options 6 (DNS Server) and 15 (Domain Name) are configured.
• DHCP Option 152. If an optional WLAN Application Gateway 2246 is
used in the system, its IP address can be specified with this option.
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