3Com Switch 8800 Family IPsec Module Configuration and Command reference Guide

10 CHAPTER 1: SWITCH 8800 IPSEC MODULE
VPN
L2TP VPN
Initiating connection to the specified LNS according
to the full user name and domain name of the VPN
user
Distributing addresses for VPN users
LCP re-negotiation and CHAP re-authentication
IPsec/IKE
AH and ESP protocols
Supporting to automatically establish security
association manually or through IKE
ESP supports DES, 3DES and AES encryption
algorithms
Authentication MD5 and SHA-1 algorithms
IKE main mode and aggressive mode
NAT traversal
GRE VPN
Use Tunnel technology to encapsulate and
decapsulate data packets at both sides of the Tunnel
DVPN
Supporting the technology to automatically establish
a tunnel
Supporting to establish a tunnel in UDP mode
Supporting client access authentication and
encryption authentication between nodes
Supporting to use dynamical IP addresses to create
VPNs.
The same node can belong to different VPN
domains.
Multiple VPN domains
NAT traversal
The DVPN tunnel can bear IPsec encryption.
Dynamically creating tunnels can save server
bandwidth.
Network
interconnection
LAN protocol
Ethernet_II
Ethernet_SNAP
VLAN
Link layer protocol
PPP
PPPoE
Table 1 IPsec Module Function
Attribute Description