Juniper Netscreen 5GT: VPN passing traffic only one direction?

Our office has three locations connected by a VPN set up with Juniper Netscreen 5GT appliances in each location.  Each location is naturally on its own subnet:

Location A: 192.168.1.x
Location B: 192.168.4.x
Location C: 192.168.5.x

Location A has the domain controller and mail server. All clients at B and C can connect to the internal company web, mail server, etc, all hosted at site A. Clients at B and C can also ping client computers located at site A.

Location A, however, cannot ping clients at location B or C. I tried opening a remote desktop connections to the clients at location B and C and was not successful. More importantly, I am trying to deploy an IP conference phone to each of the locations, B and C. The phones are programed with all the necessary IP information, can report back to the phone system server located at A, but the phone system cannot return any data to the remote phones. This is most likely due to the same reasons that prevent pinging of clients at those locations, etc.

In short: traffic doesn't seem to be flowing freely between the sites even though some traffic is. What do I need to look at on the Juniper systems to open this up to get all traffic flowing freely between the sites?

Also, does anyone have a link to a good Juniper Netscreen 5GT user guide? I can't seem to find one that tells me anything I need to know in plain language.

Thanks!Start Free Trial