Yealink SIP T2 Series Provisioning Manual page 69

Parameter
network.ipv6_icmp_v6.enable
(only applicable to SIP-T48G IP phones)
Permitted
Descriptions
Values
2026:1234:1:1:c3c7:c11c:5447:23a6
The default value is blank.
It takes effect after a reboot.
Note: It works only if the value of the parameter
"network.ip_address_mode" is set to 1 (IPv6) or 2
(IPv4 & IPv6), and
"network.ipv6_internet_port.type" is set to 1 (Static
IP Address) or "network.ipv6_static_dns_enable" is
set to 1 (On).
It enables or disables the IP phone to obtain IPv6
network settings via SLAAC (Stateless Address
Autoconfiguration) method.
0-Disabled
1-Enabled
The default value is 1.
0 or 1
It takes effect after a reboot.
Note: SLAAC is enabled on SIP-T22(P) IP phones by
default.You are not allowed to configure this
parameter for SIP-T22(P) IP phones. For more
information on SLAAC, refer to Yealink IP Phones
Administrator Guide.
Appendix
Web Setting Path
Network->Advanced->ICMPv6
Status->Active
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