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5.1 Security Considerations for Implementers

IP-HTTPS does not implement any form of security mechanism. It can use security mechanisms implemented by HTTPS (TLS), as described in [RFC2818] and [RFC4346].

As a transport for IP-HTTPS, HTTP provides none of the security services offered by HTTPS. Accordingly, when using HTTP as a transport, it is recommended that the IP-HTTPS payload be protected by some other means. Additionally, some proxies are known to inspect HTTP exchanges, and prevent communications when these do not appear to be normal web traffic. Because of these security and operational considerations, it is recommended that IP-HTTPS use HTTPS as a transport.

When the IP-HTTPS server is configured to use the HTTP transport, it is possible to use it in conjunction with another device (such as a reverse proxy or an SSL/TLS load balancer), which terminates the HTTPS connection from the client on behalf of the server. In this case, the security mechanisms are ensured by that device. There is an implicit relationship of trust between the IP-HTTPS server and the device that terminates HTTPS on its behalf.

It is not possible to use the SEcure Neighbor Discovery (SEND) protocol [RFC3971] when the server authentication mode is None because the server generates Neighbor Advertisements on behalf of clients.

 
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