Amazon.com: Zyxel ZyWALL 6.0 Gbps VPN Firewall, recommended for up to 1000 users [ZYWALL1100] : Electronics
Amazon.com: Zyxel ZyWALL 1.5 Gbps VPN Firewall Device, 2 WAN Router, load balancing, recommended for up to 10 users, 3G/4G LTE support [VPN2S] : Electronics
Best Buy: Zyxel Prestige ADSL2+ VPN Router P-662H-D1
ZyWALL/USG] How to set up a Client-to-Site VPN (Mode Config/DHCP) connection using IKEv1 – Zyxel Support Campus USA