Netopia 3346N-ENT User Guide (en)

Virtual Private Networks (VPNs)   5-7
The IP Profile Parameters screen appears.
Enter the Remote IP Address and Remote IP Mask for the host to which you want to tunnel.
About IPsec Tunnels
IPsec stands for IP Security, a set of protocols that suppor ts secure exchange of IP packets at the IP layer. 
IPsec is deployed widely to implement Vir tual Private Networks (VPNs). See 
 for more 
IPsec suppor ts two encr yption modes: Transpor t and Tunnel. Transpor t mode encr ypts only the data por tion 
(payload) of each packet, but leaves the header untouched. The more secure Tunnel mode encr ypts both the 
header and the payload. On the receiving side, an IPsec-compliant device decr ypts each packet. Netopia 
Routers suppor t the more secure Tunnel mode.
Netopia Firmware Version 8.6.1 offers IPsec 3DES encr yption over the VPN tunnel. DES stands for Data 
Encr yption Standard, a popular symmetric-key encr yption method. DES uses a 56-bit key. Netopia Routers offer 
IPsec 3DES (triple DES) encr yption as a standard option. Some models suppor t built-in hardware acceleration 
of 3DES encr yption at line speeds.
Internet Key Exchange (IKE) is an authentication and encr yption key management protocol used in conjunction 
with the IPsec standard. IPsec key management offers a wide variety of options which are explained in 
                            IP Profile Parameters
         Address Translation Enabled:       Yes
         NAT Map List...                    Easy-PAT
         NAT Server List...                 Easy-Servers
         Local WAN IP Address:    
         Remote IP Address:       
         Remote IP Mask:          
         Filter Set...
         Remove Filter Set
         RIP Profile Options...