About Ipv4 And Ipv6 Operation - Avaya J169 Installing And Administering

Administering your phone
If an HTTP backup or restore operation requires authentication and the realm in the challenge
matches the stored realm, the phone uses the stored credentials to respond to the challenge
without prompting the user. However, if the stored credentials are null, or if the realms do not
match, or if an authentication attempt using the stored credentials fails, the Status Line of the IP
Deskphones or the Prompt Line for all other IP Deskphones display an HTTP Authentication or an
HTTP Authentication Failure interrupt screen: Enter authentication credentials.
New values replace the stored authentication and realm values:
• When HTTP authentication for backup or restore succeeds
• If the userid, password, or realm used differs from those values that are stored in the phone
• If HTTP authentication fails, the user is prompted to enter new credentials.
Note:
The HTTP basic authentication method is not secure. Use this method only for compatibility
with file servers that require authentication. For example, IIS 7.0 and later require
authentication for PUT requests. Volume settings for the ringer and the speaker are persistent
after reboot and backup/restore.
Note:
Users can request a backup or restore using the Advanced Options > Backup/Restore
screen, as described in the user guide for their specific deskphone model.
Related links
Server Administration

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. Any additional limitation or bugs discovered within this release 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.
May 2018
on page 82
Installing and Administering Avaya J169/J179 IP Phone H.323
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