What isH.460

H.460 is an extension to the H.323 ITU standard for multimedia communications over packet networks. The standard includes methods for transmitting multimedia between videoconferencing systems over connections like the Internet or local enterprise networks. Firewalls manage policies on these networks to protect secure areas from unknown areas like the Internet. H.460 is a set of extensions to H.323, which includes methods for overcoming firewalls and implementing security policies needed for the firewall configuration.

What is H.460?

H.460 is a set of extensions to the ITU standard H.323 that includes methods for overcoming firewalls. The H.323 series is a set of ITU standards for multimedia communications over packet networks. It describes methods for transmitting multimedia between videoconferencing systems over packet-based connections such as the Internet or a local enterprise network.

Firewalls manage policies on these networks to protect secure areas from unknown areas such as the Internet. H.460 is a recommendation for overcoming firewalls that accompanies the H.323 series. Devices using H.460 implement a set of security policies for which a firewall can be configured.

How Does H.460 Overcome Firewalls?

H.460 provides a set of extensions to H.323 that assist in traversing firewalls. These extensions include Security Gateway and Network Address Translation (NAT) traversal.

Security Gateway traversal allows a videoconferencing system to connect through a firewall without having direct access to the Internet. Instead, the system connects to a Security Gateway, which acts as an intermediary between the videoconferencing system and the public Internet. The Security Gateway can control the traffic passing through it based on a set of security policies configured on the Security Gateway.

NAT traversal, on the other hand, allows a videoconferencing system to connect through a firewall even when it is using a private IP address that is not routable on the public Internet. NAT traversal overcomes this restriction by allowing the firewall to map the private IP address of the videoconferencing system to a public IP address that can be used on the Internet.

Why is H.460 Important?

Firewalls are an essential part of network security, and they play a crucial role in protecting secure areas from unknown areas. However, they can also be an obstacle to multimedia communications, especially when the multimedia traffic uses non-standard ports or protocols.

H.460 is important because it provides a set of extensions to H.323 that enable videoconferencing systems to traverse firewalls without compromising security policies. As a result, H.460 allows for greater flexibility in multimedia communications and ensures that firewalls do not prevent users from accessing the multimedia resources they need.

The upshot

H.460 is a set of extensions to the ITU standard H.323 that includes methods for overcoming firewalls. Firewalls play an essential role in network security, but they can also be an obstacle to multimedia communications. H.460 provides a mechanism for traversing firewalls that ensures that security policies are not compromised. As a result, H.460 is crucial for ensuring that users have access to the multimedia resources they need while maintaining security and protecting secure areas.

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