Cradlepoint MBR1400 - Page 157

CRADLEPOINT MBR1400 | USER MANUAL – Firmware version 5.0
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6rd Tunnel
IPv6 Rapid Deployment (6rd) is a method of IPv6 site configuration derived from 6to4. It is different from 6to4 in that the
ISP provides explicit 6rd infrastructure that handles the IPv4 ↔ IPv6 translation within the ISP network. 6rd is considered
more reliable than 6to4 as the ISP explicitly maintains infrastructure to support tunneled IPv6 traffic over their IPv4
network.
• 6rd Prefix – The 6rd prefix and prefix length should be supplied by your ISP.
• IPv4 Border Router Address – This address should be supplied by your ISP.
• IPv4 Common Prefix Mask – Input the number of common prefix bits that you can mask off of the WAN's IPv4
address.
• Primary IPv6 DNS Server – (optional) Depending on your provider, this may be required. This only takes effect if
the default global DNS setting on the Network Settings → DNS page is "Automatic".
• Additional IPv6 DNS Server – Secondary DNS server.
• Delegated IPv6 Network – (optional) Network available for delegation to LANs. Depending on your provider, this
may be required. Prefixes specified here only take effect if those supplied by the connection are insufficient to
configure your LANs.
• Delegated IPv6 Network – Additional network available for delegation to LANs.