?– Compression Control Protocol (CCP) As you would expect, this protocol
is in charge of negotiating compression parameters between server and
client. Although software compression is useful, in reality, you should rely on
hardware compression as it is faster and frees up CPU cycles.
?– IP Control Protocol (IPCP) This protocol is in charge of IP negotiation such
as maximum transmission unit (MTU).
?–? Internet Protocol (IP) At this point, PPP simply acts like any TCP/IP
connection over a regular LAN connection with speed being the only
differentiator. IP packets are sent back and forth over the connection and any
protocol that can stack on top of this can work just as it would on any ???regular???
network connection.
383 Chapter 11: Routing and Remote Access
Virtual Private Networks
VPNs provide near ideal solutions for remote access needs. They are cheaper to implement
and manage since you have to be concerned only about your network bandwidth
to the Internet. The proliferation of reliable and fast broadband connections as well as
widespread use of wireless Internet access has made VPN even more accessible than
dial-up networking ever was. Although security risks are a concern since technically the
packets are being transmitted through the Internet, where potentially anything can happen,
these risks can be mitigated by creating secure and encrypted tunnels for the data
to pass through.
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