Understanding Trusted Source Stateless Firewall Filters

You can create a stateless firewall filter that specifies which protocols and services, or applications, are allowed to reach the Routing Engine. Applying this type of filter ensures that packets are from a trusted source and protects the processes running on the Routing Engine from an external attack.

Related Topics

• Junos OS Feature Support Reference for SRX Series and J Series Devices
• Example: Blocking Telnet and SSH Access in the Junos Policy Framework Configuration Guide
• Example: Blocking TFTP Access in the Junos Policy Framework Configuration Guide
• Example: Accepting OSPF Packets from Certain Addresses in the Junos Policy Framework Configuration Guide
• Example: Accepting DHCP Packets with Specific Addresses in the Junos Policy Framework Configuration Guide