Zyxel P-660R: ADSL modem, Annex A

ADSL2+ Router Analog (including Filter)

The P-660R combines various network functions. Therefore, it is primarily used in existing network environments where a firewall is already in place. This ADSL router does not have an integrated Stateful Packet Inspection firewall. Separating internet access and security into distinct hardware components can be beneficial. When changing access technologies (ADSL, cable, leased line), the firewall can still be utilized. Additionally, the configuration options for firewall rules, for example on the ZyWALL USG 300, are more extensive than on a combined ADSL firewall router. The Zero-Configuration feature requires virtually no configuration effort. Traffic redirect can be configured as a backup for the internet connection.