3Com 10014299 manual Nat

8CHAPTER 1: 3COM ROUTER INTRODUCTION

Attribute	Description
Network security	Authentication,	■	Provides PPP and login user authentication
	Authorization and	■	Supports RADIUS, provides RADIUS
	Accounting (AAA)
			authentication/accounting
	service
			Provides local authentication
		■
		■ Supports CHAP and PAP authentication
	Firewall	■	Supports standard access control list
		■ Supports extended access control list
		■ Supports interface-based access control list
		■ Supports time segment based access control list
	NAT	■	Supports the users in LAN to access external networks by
			using the IP address in a configured address pool.
		■ Supports to configure relationship between access control
			list and address pool.
		■ Supports to configure relationship between access control
			list and interface.
		■ Supports the host of external network to access the internal
			server
		■ Supports to configure valid period for address translation
	Data security	■	Supports terminal access security (user classification
			protection, user login authentication)
		■ Supports IPSec, provides tunnel and transmission
			encapsulation modes and supports AH and ESP security
			authentication
		■ Supports network data encryption card and provide IPSec
			encryption/decryption
		■ Supports IKE, automatically negotiates on security key and
			create the security federation
Network reliability	Backup center	■	Can back up any physical interface or sub-interface on the
			router and an X.25 or frame relay virtual circuit on the
			interface as well.
		■ Barring the Ethernet interface, any physical interfaces or
			virtual interface templates on the router can be used as
			backup interfaces. An X.25 or frame relay virtual circuit on
			the interface or a dialer route on the dial interface can be
			used as backup interface as well.
		■ Provides multiple backup interfaces for one main interface.
			These backup interfaces will be used according to their
			priorities.
		■ Backs up multiple main interfaces of the interfaces with
			multiple physical channels
		■ Supports to configure the conditions to switch the
			main/standby interfaces
	Hot backup	■	Supports VRRP