Networking

Description This article provides a step-by-step guide on upgrading Grandstream routers GWN70XX series’ firmware to versions 1.0.5.44 and 1.0.9.51, including detailed behavior during each upgrade attempt. It also outlines an alternative upgrade method for routers running version 1.0.2.3, which do not support DHCP Option-based upgrades. Follow the provided instructions to ensure a successful firmware update … Read more

Description Destination NAT or DNAT, changes the destination address in the IP header of a packet and the destination port in the TCP/UDP headers. It is used to redirect incoming packets with a public address/port to a private IP address/port in your network. Configuration steps: Note Port forwarding rules must be removed (not disabled) in the router. Otherwise, it … Read more

Description This article describes the site-to-site IPSec configurations in Grandstream router GWN700x series when it is behind NAT (SonicWall). How It Works IPSec needs to check the Peer’s ID during authentication. The Grandstream router GWN700x uses the IP address of the WAN port as the IKE ID (Local ID/Remote ID) by default. If the router … Read more