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In February, 2011, the last top level block of free IPv4 addresses was assigned. As the remaining addresses are depleted, IPv6 protocol becomes a necessity. In perspective, IPv4 allows 232 addresses, whereas IPv6 allows 2128 addresses- ensuring that the World Wide Web routing will be free from such limitations for the foreseeable future.

To assist in migrating your network, many of Comtrend's products already allow IPv4 and IPv6 by supporting a dual-stack implementation. This gives you the ability to run IPv4 and IPv6 simultaneously. Products ranging from single-port modems to VDSL2 bonding gateways support this new Internet Protocol today. New products are being released, and all are IPv4 and IPv6 compliant !


AR-5384u - 802.11n
Dual-WAN Wireless ADSL2+ Gateway
ADSL2+ Multi-port Gateway

Comtrend's IPv6 Feature Support List
Relevant RFC

RFC4213 IPv4/IPv6 Dual Stack
RFC2460 Internet Protocol, Version 6 (IPv6)
RFC4861 Neighbor Discovery for IPv6
RFC4862 SLAAC - IPv6 Stateless Address Autoconfiguration
RFC1981 Path MTU Discovery for IPv6
RFC4291 IPv6 Addressing Architecture
RFC4443 Internet Control Message Protocolv6 for IPv6 (ICMPv6)
RFC3484 Default Address Selection for IPv6
Wide Area Network (WAN),
Local Area Network (LAN)
RFC3315 Dynamic Host Configuration Protocol (DHCP) for IPv6
RFC3633 IPv6 Prefix Options for DHCPv6
RFC3646 DNS Configuration options for DHCPv6
RFC3901 DNS IPv6 Transport Operational Guidelines
RFC4193 Unique Local IPv6 Unicast Addresses
RFC5072 IPv6 over PPP
RFC2473 Automatic 6to4 tunnels (Generic Packet Tunneling in IPv6)
RFC2464 IPv6oE (Transmission of IPv6 Packets over Ethernet Networks)
RFC2492 IPv6 over ATM Networks
RFC4649 DHCPv6 Relay Agent Remote-ID Option
DS-Lite Dual-Stack Lite - draft-ietf-softwire-dual-stack-lite-03
RFC5969 IPv6 Rapid Deployment on IPv4 Infrastructures (6rd)
User Interface   IPv6 Ping
  IPv6 Traceroute
Unicast, Multicast, Streaming RFC2710 Multicast Listener Discovery (MLD) for IPv6
RFC4340 Datagram Congestion Control Protocol (DCCP)
RFC4960 Stream Control Transmission Protocol

* For a complete listing of all IPv6 relevant features, please contact your Comtrend Account Manager