TP-Link Archer C55 User Manual page 103

2) Static IPv6
 IPv6 Address - Enter the IPv6 address provided by your ISP.
 Prefix Length - The length of IPv6 address prefix.
 IPv6 Gateway - Enter the default gateway provided by your ISP.
 IPv6 DNS Server- Enter the DNS IPv6 address provided by your ISP.
 Secondary IPv6 DNS Server - Enter another DNS IPv6 address provided by your ISP.
 MTU(Bytes) - The normal MTU (Maximum Transmission Unit) value for most Ethernet
networks is 1500 Bytes. For some ISPs, you may need to modify the MTU. But this is rarely
required, and should not be done unless you are sure it is necessary for your ISP connection.
 Enable MLD Proxy - Enable the Multicast Listener Discovery (MLD) Proxy function if you need.
Archer C55 AC1200 Wireless Dual Band Gigabit Router
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