Firewalls

17.4.2 Protection solutions for the extranet

and Internet

Extranet and Internet protection solutions can be used between

organizations, their branch offices, remote sites, nomadic users, sup-

pliers, partners, or customers, over any public network like the

Internet (Figure 17.1). A specific case is that of nomadic users, who

need to access the company intranet through remote dial-up access

services or through the Internet itself. In both cases, it is, of course,

crucial to have good protection.

17.5 Firewall tunneling technologies

There are five main Internet security and firewall tunneling technol-

ogy approaches to combat intrusion in a Transmission ...