>From post by Alex Taylor on comp.os.os2.networking.tcp-ip and
comp.os.os2.misc

I've written an INF document describing how to configure and use the built-in MPTS firewall and VPN feature.

It has been uploaded to Hobbes (see /pub/incoming) as firewall_doc_v10.zip

Search: http://hobbes.nmsu.edu/cgi-bin/h-search?key=firewall_doc_v10.zip
URL: http://hobbes.nmsu.edu/pub/incoming/firewall_doc_v10.zip

Feedback and/or error reports are appreciated.


WHAT IS THE BUILT-IN FIREWALL?

The MPTS firewall feature is included in MPTS v5.3/TCP/IP v4.1 and up, and is one of OS/2's best-kept secrets. Until now, it has had no documentation (or even official acknowledgement) besides some sparse and
incomplete notes scattered amongst various RedBooks. Many people probably don't even know it exists.

This feature includes IP packet filtering and IPSec tunnel functionality,both inherited from the AIX SecureWay Firewall product.
(The code wasported over from the AIX as part of the 32-bit TCP/IP stack; probably for the sake of providing the dynamic IPSec tunnel client, which
is the only part of it to have an actual GUI interface). With these features, OS/2 is capable of functioning as a VPN host, or even as a basic firewall.

The more advanced features of SecureWay, such as NAT or SOCKS server functionality, are not available in the MPTS firewall.

Source: OS2VOICE

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