Brocade Mobility 7131N-FGR Access Point Product Reference Guide (Supporting software release 4.0.0.0-35GRN and later) - Manual (Page 589)

Brocade Mobility 7131N-FGR Product Reference Guide 577
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Configuring an IPSEC tunnel and VPN FAQs
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• Creating multiple VPN Tunnels. The AP supports a maximum of 25 tunnels.
• When using the Remote Subnet IP Address with an appropriate subnet mask, the AP can
access multiple subnets on the remote end.
For example: If creating a tunnel using 192.168.0.0/16 for the Remote Subnet IP address, the
following subnets could be accessed:
• 192.168.1.x
• 192.168.2.x
• 192.168.3.x, etc
• Question 2: Even if a wildcard entry of "0.0.0.0" is entered in the Remote Subnet field in the
VPN configuration page, can the AP access multiple subnets on the other end of a VPN
concentrator for the APs LAN/WAN side?
No. Using a "0.0.0.0" wildcard is an unsupported configuration. In order to access multiple
subnets, the steps in Question #1 must be followed.
• Question 3: Can the AP be accessed via its LAN interface of AP#1 from the local subnet of
AP#2 and vice versa?
Yes.
• Question 4: Will the default "Manual Key Exchange" settings work without making any
changes?
No. Changes need to be made. Enter Inbound and Outbound ESP Encryption keys on both APs.
Each one should be of 16 Hex characters (depending on the encryption or authentication
scheme used). The VPN tunnel can be established only when these corresponding keys match.
Ensure the Inbound/Outbound SPI and ESP Authentication Keys have been properly specified.
• Question 5: Can a tunnel between a Brocade Mobility 7131N-FGR Access Point and WS2000
be established?
Yes.
• Question 6: Can an IPSec tunnel over a PPPoE connection be established - such as a PPPoE
enabled DSL link?
Yes. The access point supports tunneling when using a PPPoE username and password.
• Question 7: Can I setup an access point so clients can access both the WAN normally and only
use the VPN when talking to specific networks?
Yes. Only packets that match the VPN Tunnel Settings will be sent through the VPN tunnel. All
other packets will be handled by whatever firewall rules are set.
• Question 8: How do I specify which certificates to use for an IKE policy from the access point
certificate manager?
When generating a certificate to use with IKE, use one of the following fields: IP address,
Domain Name, or Email address. Also, make sure you are using NTP when attempting to use
the certificate manager. Certificates are time sensitive.
Configure the following on the IKE Settings page:
Local ID type refers to the way that IKE selects a local certificate to use.
• IP - tries the match the local WAN IP to the IP addresses specified in a local certificate.
• FQDN - tries to match the user entered local ID data string to the domain name field of the
certificate.