if the value is a DNS name and if DNS returns both an IPv4 and an IPv6 address, the one that will
be used is controlled by the parameter IPPREF.
Related links
Server Administration on page 50
Features not supporting IPv6
The features and capabilities detailed in the following table are not available with IPv6 in H.323
software Release 6.0 or later:
Table 9: Features not supporting IPv6
VPN [IPsec, IKEv1] LLDP RSVP [IPv4 audio
connections only
RTP
RTCP Monitoring CNA HTTP Server Push
Request
Certificates
Syslog DHCP Remote Trace Route,
Remote Ping
Audio Push
SSH SNMP Dynamic VLAN PTI
Many debugging and
reporting capabilities
available for IPv4
DOS attack blocker All secure protocols,
including but not
limited to https,
secure BR, agent
greetings
Note:
Avaya does not support IPv6 for the general market, and makes the software available to a
specific set of customers with the understanding that IPv6 is undergoing further refinement. It
is strongly recommended that customers planning to deploy IPv6 first thoroughly evaluate it in
a test environment that mimics the target live environment. IPv6 environments requiring
capabilities detailed in the table above are not supported with this release. Any additional
limitation or bugs discovered within this release will be considered for resolution in future
major releases.
Related links
Server Administration on page 50
Server Administration
March 2018 Administering Avaya 9608/9608G/9611G/9621G/9641G/9641GS IP Deskphones H.
323 64
Comments on this document? infodev@avaya.com