Avaya one-X 9600 Series Administrator's Manual page 72

Server Administration
As of software Release 6.0 (and later), Internet Protocol (IP) operation determination follows
this order:
If NVVPNMODE parameter value is set to "1" (Yes) only IPv4 operation is enabled.
●
If NVVPNMODE is set to "0" (No), the IPv6 status
●
if IPv6 is allowed; if set to "0" (No) then only IPv4 operation is enabled.
If IPV6STAT is set to "1" (support IPv6), then the
●
- If DHCPSTAT is set to "1" (use DHCPv4 only) then IPv4 only is enabled. But if an IPv6
address was manually programmed, dual-stack operation is enabled.
- If DHCPSTAT is set to "2" (use DHCPv6 only) then IPv6 only is enabled. But if an IPv4
address was manually programmed, dual-stack operation is enabled.
- If DHCPSTAT is set to "3" (both IPv4 and IPv6 supported), then dual-stack operation is
enabled.
If IPv4-only operation is enabled, any IPv6 address(es) configured as parameter values are
ignored, and the next IPv4 address (if any) in a list of addresses is used. If the parameter value
does not contain any IPv4 addresses, the value is treated as if it was null.
If IPv6-only operation is enabled, any IPv4 address(es) configured as parameter values are
ignored, and the next IPv6 address (if any) in a list of addresses is used. If the parameter value
does not contain any IPv6 addresses, the value is treated as if it was null.
The results of the determination are expressed in
Table 11: IP Enablement Results
Manually IPV6STAT
program-
med IPv4
address?
No 0
1
72 9600 Series IP Deskphone Administrator Guide Release 6.0
Manually DHCPSTAT
program-
med IPv6
address?
n/a n/a
No 1
2
3
Yes 1 or 3
2
IPV6STAT parameter is checked to see
DHCPSTAT parameter is checked:
Table 11.
Result Addressing Mode(s)
IPv4
IPv4 only DHCP
IPv4 only DHCP
IPv6 only n/a
dual-stack DHCP
dual-stack DHCP
IPv6 only n/a
IPv6
n/a
n/a
DHCPv6
DHCPv6
manual
manual