Avaya 1230 - DHCP Server Unreachable

If no REPLY message is received, the IP Deskphone makes four more attempts to contact the
DHCPv6 server. If unsuccessful, the IP Deskphone removes the duplicated IP address from the list
of IPv6 addresses, resources associated with duplicate address are freed, and the DHCP process
restarts.
DHCP server unreachable
This section describes the IP Deskphone behavior when the DHCPv4/DHCPv6 server is
unreachable.
If the DHCPv4/DHCPv6 server is unreachable due to the following scenarios:
• IP Deskphone starts and cannot get IPv4 address from DHCPv4 server (cached IP is disabled)
• IP Deskphone starts and cannot get IPv6 address from DHCPv6 server (cached IP is disabled)
• IPv4 address lease expires (cached IP is disabled)
• IPv6 address becomes deprecated and there are no active calls (cached IP is disabled)
• IPv6 address lease expires (cached IP is disabled)
then the following message is displayed on the IP Deskphone display screen:
DHCP server unreachable. Trying to contact...
Note:
If the IPv6 address becomes deprecated and there is an active call, the message is displayed
on the IP Deskphone display screen after the active call is released.
When this message is displayed, the user can:
• wait until the IP Deskphone receives the required IP address from DHCP
• open the Device Settings menu (by double-pressing the Services key) and try to re-configure
the IP Deskphone
The message window closes automatically when the IP Deskphone receives a new valid IPv4/IPv6
address.
Network Diagnostic Tools
The Network Diagnostic Tools screen provides access to ping and tracert testing routines. To
access the Network Diagnostic Tools screen, from the Diagnostics menu, choose 2. Network
Diagnostics tools.
The following screen appears:
Diagnostics and troubleshooting
338 SIP Software for Avaya 1200 Series IP Deskphones-Administration March 2015
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