Connectivity issues within the WAN
Posted on 2009-02-16
Trouble with access to random devices from outside or inside the network. This appears to be a layer 3 issue. I have access from one device to another on the same subnet depending on the device. When I reboot the switches and routers, the devices/PC's that I have connectivity between, changes.
This average Windows2003 domain network has VOIP and Data traffic. The Data side has 3 Subnets, 192.168.4.x, 192.168.5.x, 192.168.6.x,
3 Cisco switches at this location and 2 internal cisco routers (for the VOIP). Although I didn't set it up, it's my understanding that the VOIP is on separate subnets. I'm trying to get more information from the VOIP guy so forgive me for not providing more details regarding this.
It's probable that this is a design problem and has existed since the network with VOIP was put in place (1 year ago). I recall that connectivity has failed inexplicably for various devices on occasion since the beginning.
I can reach to the outside from inside on any computer (internet is fine).
I can RDP from outside to certain devices via VPN connection but only some devices.
RDP from one device on same subnet to another on same (Some work, some don't).
Ping tests confirm success or fail of connectivity (where RDP fails, ping fails)