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Document details
| Property | Value |
| Name | Solving the Firewall/NAT Traversal Issue of SIP: Who Should Control Your Security Infrastructure? |
| Description | Solving the Firewall/NAT Traversal Issue of SIP: Who Should Control Your Security Infrastructure? Session Initiation Protocol (SIP) has become the signaling protocol of choice for realtime communications, including Voice over IP (VoIP){mosimage}. However, SIP communication does not reach users on the local area network (LAN) behind firewalls and Network Address Translation (NAT) routers automatically. This issue of SIP traffic not traversing the enterprise firewall or NAT is critical to any SIP implementation, including VoIP. Until all firewalls are SIP capable in order to support the wide-scale deployment of realtime enterprise communications, several solutions have been proposed to work around the firewall/NAT traversal problem. Many of these solutions have serious security implications; there are also solutions that allow you to remain in control. The choice of method for traversing firewalls/NATs is, to a large extent, dependent on the answer to the questions: “Who should be in control of your security infrastructure: the firewall administrator, the user or a service provider?” and, “Do we want a solution that is predictable and functions reliably with SIP standard compliant equipment or is it sufficient with a best effort solution that works in certain scenarios and, perhaps, only with a specific operator?” This white paper outlines the pros and cons of each solution, so you can make the best decision for your network. |
| Filename | Solving_Firewall-NAT_Traversal.pdf |
| Filesize | 273.8 KB |
| Filetype | pdf (Mime Type: application/pdf) |
| Creator | hcall |
| Created On: | 17.05.2007 11:10 |
| Viewers | Everybody |
| Maintained by | |
| Hits | 3631 Hits |
| Last updated on | 22.05.2007 15:51 |
| Homepage | http://www.ingate.com |
SIP SPOKESPERSON
Bernard Hammer is responsible at Siemens for technical and strategic standardization issues in the field of IP-based communications for enterprise networks.
