IPCOMP(4) - Device Drivers Manual # IPCOMP(4) - Device Drivers Manual
NAME # ipcomp - IP Payload Compression Protocol
DESCRIPTION # IPComp is enabled with the following sysctl(2) variable in /etc/sysctl.conf:
net.inet.ipcomp.enable
IPComp is a protocol used to reduce the size of IP datagrams. It can be used to enhance the communication performance between a pair of hosts/gateways, especially on slow links, by compressing the datagrams, provided the communicating entities have enough computational power.
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IPSEC.CONF(5) - File Formats Manual # IPSEC.CONF(5) - File Formats Manual
NAME # ipsec.conf - IPsec configuration file
DESCRIPTION # The ipsec.conf file specifies rules and definitions for IPsec, which provides security services for IP datagrams. IPsec itself is a pair of protocols: Encapsulating Security Payload (ESP), which provides integrity and confidentiality; and Authentication Header (AH), which provides integrity. The IPsec protocol itself is described in ipsec(4).
In its most basic form, a flow is established between hosts and/or networks, and then Security Associations (SAs) are established, which detail how the desired protection will be achieved.
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