Firewall Gateway UDP port 
CATO Networks
MAY 20, 2020
The idea behind the castle and moat approach is straightforward: if you fortify the network perimeter well enough, using security policies, firewalls, proxies and the like, your internal network will remain safe. NGFWs can drill down beyond IP addresses, TCP/UDP ports, and network protocols to enforce policies based on packet content.
CATO Networks
FEBRUARY 26, 2020
Network security tools that are part of Catos network infrastructure include: Next-generation firewall NGFW allows granular rules to be implemented that can control access based on network entities, traffic type, and time. ZTNA point solutions often require specialized cloud gateways or additional software and services.
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