SNMP is specifically designed for use in IP network management network nodes (servers, workstations, routers, switches, and HUBS, etc.) of a standard protocol, it is an application layer protocol. SNMP enables network administrators to manage network performance, find and solve network problems, and plan network growth. The network management system receives random messages (and event reports) via SNMP and learns of network problems.

The predecessor of SNMP is simple gateway monitoring protocol (SGMP), which is used to manage communication lines. Since then, SGMP has been greatly modified, especially by the addition of SMI and MIB that conform to the Internet definition. The improved protocol is known as SNMP. SNMP network Management framework based on TCP/IP is the current standard in the industry, which consists of three main parts, namely Structure of Management Information, MIB and SNMP.

MIB in SNMP is a kind of tree database, the object managed by MIB is the node of the tree, and each node has a unique location and a unique name.IETF stipulates that the object identifier of the management information base is uniquely specified, and its naming rule is that the name of the parent node is prefixed as the name of the child node. MIB for SNMP function of 4g sim based router can be provided for customers to modified.

A SNMP managed network consists of three key components: the network management system, the managed device, and the agent.

E-Lins’ 4g sim based router can support our NMS for free. Also our 4g router with sim slot can supports functions like VPN, DDNS, DHCP, Static Route, Dynamic Route, Firewall, NAT/NAPT, Web, Auto-dial, always online, watch-dog; Cellular/WAN RJ45/WiFi Client failover, load balance.