Ensuring Data Connectivity from Sophos Firewall to 4 locations

I have completed data connectivity through GRE Tunneling for 4 location of a RMG company, where Core device was Sophos Firewall at Head Office and MikroTik router at Branch Office end and worked as Project Network Engineer during my job tenture at Aamra Networks Limited.

Activities performed:
o Configured GRE Tunnel in Sophos and Mikortik
o Policy to access LAN to LAN
o Route manipulation through route precedence
o Data redundancy through tunneling