Users Guide

Table Of Contents
Dell PowerConnect ArubaOS 5.0 | User Guide Virtual Private Networks | 357
IKE Shared Secrets
You can configure a global IKE key or configure an IKE key for each subnet. Make sure that this key matches the
key on the client.
1. Under IKE Shared Secrets, click Add to open the Add IKE Secret page.
2. Enter the subnet and subnet mask. To make the IKE key global, specify 0.0.0.0 and 0.0.0.0 for both values.
3. Enter the IKE Shared Secret and Verify IKE Shared Secret.
4. Click Done to apply the configurations.
IKE Policies
1. Under IKE Policies, click Add to open the IPSEC Add Policy configuration page.
2. Set the Priority to 1 for this configuration to take priority over the Default setting.
3. Set the Encryption type from the drop-down menu.
4. Set the HASH Algorithm to SHA or MD5.
5. Set the Authentication to Pre-Share or RSA. If you are using certificate-based IKE, select RSA.
6. Set the Diffie Hellman Group to Group 1 or Group 2.
The IKE policy selections, along with the preshared key, need to be reflected in the VPN client configuration.
When using a third party VPN client, set the VPN configuration on clients to match the choices made above.
In case the Dell dialer is used, these configuration need to be made on the dialer prior to downloading the
dialer onto the local client.
7. Click Done to activate the changes.
8. Click Apply to apply the changes made before navigating to other pages.
Configure a VPN with XAuth via the CLI
Authentication Method and Server Addresses
vpdn group l2tp
enable
ppp authentication {cache-securid|chap|mschap|mschapv2|pap}
client configuration {dns|wins} <ipaddr1> [<ipaddr2>]
{crypto-local isakmp xauth | no crypto-local isakmp xauth}
Address Pools
ip local pool <pool> <start-ipaddr> <end-ipaddr>
Source NAT
ip access-list session srcnat
user any any src-nat pool <pool> position 1
Aggressive Mode
crypto isakmp groupname <name>
Server Certificate
crypto-local isakmp server-certificate <name>
CA Certificate Assigned for VPN Clients
crypto-local isakmp ca-certificate <cacert-name>
IKE Shared Secrets
crypto isakmp key <key> address <ipaddr> netmask <mask>