About Ipv4 And Ipv6 Operation - Avaya 9608 Administrator's Manual

About IPv4 and IPv6 operation

Important:
Avaya does not support IPv6 for the general market, and makes the software available to a
specific set of customers with known limitations documented in the section
supporting IPv6
will be considered for resolution in future major releases.
From Release 6.0 onwards, 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 IPV6STAT parameter is checked to see 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 DHCPSTAT parameter is checked:
- 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, the system ignores any IPv6 addresses configured as parameter
values and uses the next IPv4 address in the list. If the parameter value does not contain any IPv4
addresses, the system treats the value as null.
If IPv6-only operation is enabled, any IPv4 addresses 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 system treats the value as null.
The results of the determination are expressed in
Table 9: IP Enablement Results
Manually IPV6STAT
program-
med IPv4
address?
No 0
1
Yes 0
June 2014
on page 62. Any additional limitation or bugs discovered within this release
Manually
programmed
IPv6 address
N/A
No
Yes
n/a
Administering 9608/9608G/9611G/9621G/9641G IP Deskphones H.323
Comments? infodev@avaya.com
table IP Enablement
DHCPSTAT Result
n/a IPv4 only
1 IPv4 only
2 IPv6 only
3 dual-stack
1 or 3 dual-stack
2 IPv6 only
n/a IPv4 only
About IPv4 and IPv6 operation
Features not
Results.
Addressing Mode(s)
IPv4 IPv6
DHCP n/a
DHCP n/a
n/a DHCPv6
DHCP DHCPv6
DHCP manual
n/a manual
manual n/a
61