Specifications

Introduction  7
Installation and Operations Manual
Network-Enabled Modes
NOTES:
 For all network-enabled modes described below, the unit will set an auto-configured IPv6 address, and if IPv6 router
announcements are active, a stateless DHCP IPv6 address will also be set. Further, in all
network-enabled modes, at least
one IPv4 or
one IPv6 address will be active.
 For maximum backward compatibility, the default network mode is “IPv4 only”.
 Network disabled: No IPv4 or IPv6 addresses available.
 IPv4 only, DHCP disabled (static IPv4): If the IPv4 Static Address and Net Mask of the unit
are valid, they will be set.
 IPv4 only, DHCP enabled (DHCP IPv4): The PT22 will try to resolve an IPv4 DHCP
address. If a DHCP address cannot be obtained after 90 seconds, the PT22 can: (1) optionally
fall back to its static IPv4 settings, or (2) indefinitely wait to acquire an address based on
DHCP configuration settings. This setting is the default.
 Dual IPv6/IPv4, DHCP disabled (static IPv6/IPv4): If the IPv6 Static Address and prefix of
the unit are valid, they will be set. Otherwise, the PT22 will attempt to use DHCPv6 to obtain
an IPv6 address.
In addition, if the IPv4 Static Address and Net Mask of the PT22 are valid, they will be set.
 Dual IPv6/IPv4, DHCP enabled (DHCP IPv6/IPv4): The PT22 will try to resolve both its
IPv6 and IPv4 addresses by DHCP. If both DHCP requests are answered, the primary
DNS
server of the PT22 will become the primary
IPv6 DNS server, and the secondary DNS server
of the unit will become the primary
IPv4 DNS server.
If only one of the DHCP requests is answered, the DNS servers of the PT22 will map to the
primary
and secondary DNS server from that request.
If a DHCP address cannot be obtained after 90 seconds, the PT22 can: (1) optionally fall back
to its static IPv4 and/or IPv6 settings, or (2) indefinitely wait to acquire an address based on
DHCP configuration settings.