While it's easy for a small business to get up and running with a basic network, even as a load balancer, this UTM is not intended for a casual user. The little box is a full-fledged unified threat management appliance which packs serious punch with its laundry list of capabilities. The USG50 is not for someone just looking for a firewall, or just an intrusion prevention system. The appliance includes a firewall, intrusion prevention system, Web content filtering, antivirus, antispam, and application control. ZyXEL's ZyWALL USG 50 is a security gateway designed specifically for the small business.

Best Hosted Endpoint Protection and Security Software.Since the ZyWALL USG-20 has a very similar interface, the instructions below apply to the ZyWALL USG-20 as well.ĭetailed instructions are available from ZyXELL here ( see page 56, ZLD Configuration). If you are using Cisco phones, you need to disable SIP ALG. If you are using Poly phones with your ZyXELL ZyWALL, you need to enable SIP ALG. In the case of the ZyXELL ZyWALL USG-50, we want to

The goal of configuring any router or firewall for use on 8x8 service is to prioritize VoIP traffic on your network and achieve optimum call quality. While this device may be fully functional on the tested and/or current firmware version, it is possible newer revisions will cause disruptions in service or make a device fully compliant with the required settings for hosted VoIP services where it was previously not. Keep in mind different firmware versions will interact with hosted VoIP services in different ways. At the time of article creation, this device was in a known working state on the firmware used. The purpose of this article is to provide a sample configuration.

To change the UDP Session Time Out value.

Zywall