application-level gateway

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application-level gateway

A proxy server that inspects packets at the application layer. However, proxy servers must be manually configured, whereas application-level gateways (ALGs) typically perform their functions automatically. See SIP ALG and proxy server.
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The SnowShore Media Firewall's media processing features complement the signaling functions of the application layer gateway to provide key functions required in session border control.
1 include Multilink PPP, which enables the aggregation of multiple T1s for higher-speed applications; NAT compatible SIP Application Layer Gateway (ALG) for support of VoIP applications; and IP Multicast.
The iGateway SecureICP solution integrates an ICSA certified stateful packet inspection Firewall including a unique Cyberdefense engine, NAT support, application content filtering and extensive application layer gateway (ALG) support including a SIP proxy/application layer gateway for soft clients behind NAT.
90 is an application-centric release with three new Application Layer Gateways.
1 also provides a variety of powerful security features such as a multilayer stateful IPv6 / IPv4 TCP/IP firewall with attack prevention, a dual-version IKE protocol implementation, and Application Layer Gateways (ALGs) for various networking protocols, including HTTP, SIP, FTP, and CIFS.
The QuickSec security platform provides a complete standards-compliant and interoperable IPSec and IKEv2 protocol implementation including all necessary IPSec cryptography algorithms, a dual-mode IKEv2/IKEv1 policy manager, application layer gateways, and a multilayer stateful TCP/IP firewall with attack prevention.
323 application layer gateways, stateful packet inspection firewall, VPN, PSTN failover and VoIP survivability, passive call quality monitoring, and quality of service tools such as prioritization, traffic shaping, call admission control.
Instead of requiring labor intensive access lists or protocol specific application layer gateways, Ranch Networks' IP PBX controlled appliances provide dynamic, protocol independent, per-call authenticated network access.
It features a dedicated hardware engine for network access translation, network address port translation, firewall and over 50 application layer gateways.

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