How Ingate Firewalls Work
Ingate's SIP-capable firewalls are connected in
exactly the same way
as a normal enterprise firewall. It sits at the network perimeter
securing your LAN while seamlessly and effortlessly enabling the
secure traversal of SIP-based communications.
Firewall Deployment
SIP traversal for an incoming session of an
Ingate Firewall® (image below):
- SIP signaling comes in on a dedicated port (usually 5060)<1>.
- The SIP registrar is consulted to determine on which private address
the recipient is located and the signaling is passed on to the
recipient<2>.
- Once the two clients have agree that they want to set up a session the
firewall will dynamically open UDP ports<3> (port numbers as
agreed during setup) to allow media to flow<4>.
SIP traversal:
For more details about how Ingate
Firewalls work, see our product
sheets and technical specifications. For more information or to purchase
an Ingate Firewall, please contact us at info@ingate.com.
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