Windows Gateway Changer Utility



Windows utility that will run on PC's equipped with multiple Internet paths ( typically multiple adapters) that will route outbound IP traffic ( ALL types) to the preferred gateway based on the ability to ping external hosts.


Windows Service that will run on XP SP3 to Windows 7 with two tray icons to display the status of Path A and Path B. Written in .Net 4 VB or C#. It must be able to handle UAC if it is enabled

Should be able to send out SNMP traps when status changes

Paths A and B are the two Internet connections which have different gateways

On startup it reads Path A and Path B Gateway's from OS

On startup it writes persistent routes to routing table to Pingable site 1 and Pingable site 2 so that Site 1 is always pinged using Path A and Site 2 is always pinged using Path B.

Both Sites are pinged every few seconds and if too may pings fail in a certain time period then that path is declared DOWN and the tray icon changes color - Green =UP, Blue=Available, Red=DOWN

Path A is the preferred path so if it goes DOWN then the routing table is also changed so traffic uses path B for everything except the persistent route to Site 1.

When a site 1 is pingable again for the required number of times then Path A is declared UP and the routing table is changed again so traffic uses path A for everything except the persistent route to Site 2.

Each change in Gateway will generate an SNMP trap and Log to GatewayLog < date>.txt

Each change of date will cause the program to delete logfiles older than Y Days old

Inputs( from [url removed, login to view] )

Site 1 ( IP address or DNS) / String

Site1 Ping interval / Seconds

Site 1 fail count / Integer

Site 1 restore count / Integer

Site 2 ( IP address or DNS)

Site2 Ping interval / Seconds

Site 2 fail count / Integer

Site 2 restore count / Integer

SNMP Trap 1 address / string

SNMP Trap 2 address / string

KeepLogsFor ( days) / integer

Skills: .NET, ASP, C# Programming, Script Install, Shell Script, Visual Basic

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Project ID: #2760460

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