June 2016
Intermediate to advanced
152 pages
3h 30m
English
Hurricane Electric is a major backbone and colocation provider based in the US. In addition to their hosting/transit services, they also host http://tunnelbroker.net, another free IPv6 tunnel provider, and http://ipv6.he.net/certification, a training and certificate site for learning about IPv6 networking.
Unlike AYIYA tunnels from SixXS, IPv6 tunnels from Hurricane Electric operate over IP protocol 41, which is defined by the IPv6 Encapsulation protocol (RFC2473). This is a separate protocol from ICMP, TCP and UDP.
The downside of this approach is that it does not operate over NAT firewalls natively. This may be an issue if your new firewall device is operating behind an ISP firewall with its own ...
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