Hi, I am Bilal, a Senior Network Engineer specialized in the IP Domain for Routers, Switches and Firewalls. I have several years of experience in designing, planning and implementation of IP Networks and ensuring security for ISPs and Mobile operators (3G and 4G). Plus I am also a certificated CCNA and CCNP professional.
I shall be able to help you make configurations in your Cisco 1800 for site to site VPN using GRE. For this we can chat online and you may provide me access to deliver this task for you.
Please do look into my profile to know more about me. Thanks
Regards,
Bilal Salim