Release Notes
BCM 3.6 and SRG 1.0 Wireless IP Telephony Patch
Page 8 of 14
The DHCP server can be on either side of the firewall according to the site
administrator’s preference. The DHCP server is optional if the administrator wants to
statically configure the handsets and SVP server.
The 2210 and 2211 can have their IP related parameters configured manually or via a
DHCP server (RFC1541 and RFC 1533). Any DHCP server can be used but it must
support the following capabilities.
• Provide Client IP Address
• DHCP Option 1 – Subnet Mask
• DHCP Option 3 – Default Gateway
• DHCP Option 60 – Class Identifier – The 2210/11 uses the Class Identifier of
“Nortel-i221x-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 present the phone will look at the Next server/ Boot server
(siaddr) option for the address of the TFTP server
• Vendor Specific Option 43, 128, 144, 157, 191or 251. Only one of these options
is required. The DHCP server encodes the Server 1 information using the same
format as the i2004. If the Server 2 information is also present in the option it is
ignored.
• DHCP Option 151 – The option contains the IP address of the 2245 Server. If
option 151 is not present the wireless phone will perform a DNS lookup of the
name “SLNKSVP2” if options 6 (DNS Server) and 15 (Domain Name) are
configured.
Note: there is no partial DHCP mode as there is with an i2004. Therefore the DHCP
server must support the options above.
Each wireless handset effectively uses two IP addresses in the wireless subnet, one for
the physical set and second alias IP address that is used on the 2245 Server. When
allocating addresses in a subnet scope on the DHCP server a contiguous block of