GSM-GPRS/EDGE APN type requirements

If the VPN end points require static (persistent) IP addresses, you may need a custom access point name (APN). An Internet APN can work in these cases:

• The main site (HQ) VPN appliance can support Dynamic DNS names.
• Use another form of authentication (for example, FQDN).

Be aware that these APNs are based on AT&T; other carrier APNs may have similar requirements.