See also:Some firewall solutions are provided as software solutions that run on general purpose operating systems. Smith, Bob; Hardin, John A; Phillips, Graham; Pierce, Bill. No Starch Press. Retrieved 2008-05-06. 2005-05-02 at the - Network World.
About.com.,. Retrieved on 2 August 2016. ^Firewall rule-set advanced features comparison Can:work at OSI Layer 4 (stateful firewall)work at OSI Layer 7 (application inspection)Change TTL?. WinGate 6.x supports 3rd party modules for data scanning only (e.g.
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Antivirus and content filtering).Non-Firewall extra features comparison Those features are not strictly firewall features, but are sometimes bundled with firewall software, or exist on the platform.NOTE: Features are marked 'yes' even if implemented as a separate module that comes with the platform on which firewall sits.IDS: real-time firewall that logs/sniffs/blocks suspicious connections that are not part of rule-set.VPN (Virtual Private Network) Types are: PPTP, L2TP, MPLS, IPsec, SSL/SSH.Profile selection: The user can switch between sets of firewall settings, e.g.