FAST_IPSEC(4) BSD Kernel Interfaces Manual FAST_IPSEC(4)NAME
Fast IPsec — Hardware-accelerated IP Security Protocols
SYNOPSIS
options FAST_IPSEC
device crypto
net.inet.esp.enable
net.inet.ah.enable
net.inet.ipcomp.enable
DESCRIPTION
IPsec is a set of protocols, ESP (for Encapsulating Security Payload) AH
(for Authentication Header), and IPComp (for IP Payload Compression Pro‐
tocol) that provide security services for IP datagrams. Fast IPsec is an
experimental implementation of these protocols that uses the crypto(4)
subsystem to carry out cryptographic operations. This means, in particu‐
lar, that cryptograph hardware devices are employed whenever possible to
optimize the performance of these protocols.
In general the Fast IPsec implementation is intended to be compatible
with the KAME IPsec implementation. This documentation concentrates on
differences from that software. The user should refer to ipsec(4) for
basic information on setting up and using these protocols.
System configuration requires the crypto subsystem. When the Fast IPsec
protocols are configured for use all protocols are included in the sys‐
tem. To selectively enable/disable protocols use sysctl(8).
DIAGNOSTICS
To be added.
SEE ALSOipsec(4), setkey(8), sysctl(8)HISTORY
The protocols draw heavily on the OpenBSD implementation of the IPsec
protocols. The policy management code is derived from the KAME implemen‐
tation found in their IPsec protocols. The Fast IPsec protocols first
appeared in FreeBSD 5.0.
BUGS
There is presently no support for IPv6. The IPcomp protocol support does
not work. Certain legacy authentication algorithms are not supported
because of issues with the crypto subsystem. This documentation is
incomplete.
BSD January 20, 2003 BSD
