I can see connections on other ports between the ShoreTel servers on other ports. The only specific flag I see in a firewall log message is the 'TCP Reset-I' flag, which research suggests means that the connection is reset from the inside host. We see bidirectional traffic between all subnets in question over these tunnels and packet captures have shown some nominal TCP resets. Our support company, Cisco, and myself have all confirmed we are not blocking anything on the firewalls, and even packet tracers suggest as such. We do not filter any ports over these tunnels.
We can't get this server to communicate with any other of our offices, including the HQ site via ShoreTel proprietary ports and ShoreTel insists our network is preventing it. Our latest instance has occurred in our Milan office where we are attempting to install a new DVS server associated with our VoIP deployment. We currently have it deployed at several of our locations, but each time we want to add something new to the network, we often hit a snag. We've been having a lot of trouble with getting various ShoreTel equipment to work.
