Configuring Ipsec Vpn - Motorola WS5100 Series Reference Manual

6-46 WS5100 Series Switch System Reference Guide
4. Select an index and click the
index.
Use this information to discern whether changes to an existing IKE configuration is warranted or if a new
configuration is required.
5. Click the Stop Connection

6.8 Configuring IPSec VPN

Use IPSec Virtual Private Network (VPN) to define secure tunnels between two peers. Configure which
packets are sensitive and should be sent through secure tunnels, and what should be used to protect these
sensitive packets. Once configured, an IPsec peer creates a secure tunnel and sends the packet through the
tunnel to the remote peer.
IPSec tunnels are sets of security associations (SA) established between two peers. The security
associations define which protocols and algorithms are applied to sensitive packets, and what keying
material is used by the two peers. Security associations are unidirectional and established per security
protocol.
To configure IPSec security associations, Motorola uses the Crypto Map entries. Crypto Map entries created
for IPSec pull together the various parts used to set up IPSec security associations. Crypto Map entries
include transform sets. A transform set is an acceptable combination of security protocols, algorithms and
other settings to apply to IPSec protected traffic.
The Internet Key Exchange (IKE) protocol is a key management protocol standard used in conjunction with
the IPSec standard. IKE automatically negotiates IPSec security associations and enables IPSec secure
communications without costly manual configuration. To support IPSec VPN functionality, the following
configuration activities are required:
• Configure a DHCP Sever to assign public IP address
An IPSec client needs an IP address before it can connect to the VPN Server and create an IPSec tunnel.
A DHCP Server needs to be configured on the interface to distribute public IP addresses to the IPSec
clients.
• Configure a Crypto policy (IKE)
IKE automatically negotiates IPSec security associations and enables IPSec secure communications
without costly manual pre-configuration. IKE eliminates the need to manually specify all the IPSec
Details button to display a more robust set of statistics for the selected
button to terminate the statistic collection of the selected IKE peer.