4.
Web Management
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need a way to communicate through home and business gateways. Without IGD one
has to manually configure the gateway to allow traffic through, a process which is
error prone and time consuming.
This device supports the UPnP Internet Gateway Device (IGD) feature. By
default, it is disabled.
4.2.6 Certificate
In cryptography, a public key certificate (also known as a digital certificate or identity
certificate) is an electronic document used to prove ownership of a public key. The
certificate includes information about the key, information about its owner's identity,
and the digital signature of an entity that has verified the certificate's contents are
correct. If the signature is valid, and the person examining the certificate trusts the
signer, then they know they can use that key to communicate with its owner.
In a typical public-key infrastructure (PKI) scheme, the signer is a certificate authority
(CA), usually a company such as VeriSign which charges customers to issue
certificates for them. In a web of trust scheme, the signer is either the key's owner
(a self-signed certificate) or other users ("endorsements") whom the person examining
the certificate might know and trust. The device also plays as a CA role.
Certificates are an important component of Transport Layer Security (TLS,
sometimes called by its older name SSL), where they prevent an attacker from
impersonating a secure website or other server. They are also used in other important
applications, such as email encryption and code signing. Here, it can be used in
IPSec tunneling for user authentication.