NAT (Network Address Translation)
Translation: Translates between public and private IP addresses |
IP address assignment: Includes a simple DHCP server and can assign IP addresses to clients; uses private IP addresses |
DNS name resolution: Acts as a DNS server; forwards DNS requests to an Internet DNS server and returns the results to clients |
Internet Connection Sharing (ICS)
Simplified version of NAT |
Uses a single checkbox rather than complex configuration information |
Uses a fixed range of private IP addresses |
Allows only one public IP address |
Can only be used on one internal LAN interface |
Provides security based on individual users, nodes, or Internet addresses |
Caches HTTP and FTP requests |
Supports networks that span multiple subnets or locations |
Integrates with Active Directory |
Provides user-based and site-specific security |
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