ADTRAN's NetVanta 2000 series of virtual private network (VPN) and firewall products address a growing need for secure access to corporate information resources over the internet.  These appliances operate as IPSec-compliant gateways or clients to secure connectivity between offices, mobile workers, and business partners.  The NetVanta VPN Client is a software implemented VPN solution that also includes a full featured firewall for personal computers ideal for use by a mobile workforce.