Before taking any decision related to VPN / Remote access , please consider following changes happened recently in Qatar .
After recent upgradation from ADSL to Fiber , users facing issues with IPSec/ISAKMP traffic . Because of this many site-to-site VPN locations become unstable . It is applicable to 3G/4G and Fiber connections , but not applicable to MPLS/Internet-IP-VPN/Static-
IP/Leased-line/V-sat connections .
Solution : Use Cisco based cTCP ( https://www.cisco.com/c/en/
us/products/collateral/ security/ios-easy-vpn/prod_ white_paper0900aecd8061e2b3. html ) or OpenVPN . Both of this are not using standard UDP/ TCP ports for VPN . You can use/change any port on these setup .
Summary : If you are planning new VPN setup and if you don’t have static public IP , use Cisco or OpenVPN only . All other UTMs ( like Sonicwall,Cyberoam,Fortnet, Juniper etc ) may not be stable .
Vodafone ADSL and Ooredoo 3G/4G started giving Natted IP , like 10.X.X.X ( not entirely , but it is on roll-out stage ) . That means you may not be able to publish cameras/servers etc through such setup . Also you can not have Vodafone or Ooredoo 3G/4G connections on VPN head-end .
Solution : As of now you can not publish Camera/server on such connections . Use Qtel ADSL / Fiber or Static public IP . If there is no such connections available ( like in Readymix factories ) call us , we can offer cloud based VPN .
Will update you any development related to this . Email me to firstname.lastname@example.org