Do you have a need to transport Layer2 VLANs across the internet?  This technology is widely used in Data Center Interconnection (DCI) schemes. This walk through will show you how to establish Layer2 connectivity between two (or more) sites while maintaining security across the public Internet. VXLAN Tunneling via an IPSEC/GRE Tunnel Lab Diagram For […]

Introduction Using a VyOS Router Appliance, you can establish a secure site-to-site VPN connection between two (or more) locations. In this walk-through, we will show you how to setup two VyOS routers as firewalls and then how to establish a site-to-site IPSEC VPN tunnel between the two sites. For the IPSEC encryption, we will be […]

VyOS General Firewall Configuration Compatible Version: 1.2.x set system host-name ‘vyos-firewall’ set service ssh port ’22’ set system time-zone ‘UTC’ set system name-server ‘1.1.1.1’ set system name-server ‘8.8.8.8’ set system ntp server 0.pool.ntp.org set system ntp server 1.pool.ntp.org set system ntp server 2.pool.ntp.org set system syslog global facility all level ‘notice’ set system syslog global […]

What is Black Hole Routing? DDoS blackhole routing/filtering (sometimes called blackholing), is a countermeasure to mitigate a DDoS attack in which network traffic is routed into a “black hole,” and is lost. When blackhole filtering is implemented without specific restriction criteria, both legitimate and malicious network traffic is routed to a null route or black […]