Greetings.
I have a pair of SSG140 firewalls set up in NSRP (Yes, I know they're old). I have two subnets on the same virtual router and in the same zone (192.168.42.0/24 and 172.20.0.0/16) which are used by machines on the network. However, if I try to transfer a file from a computer on the 192.168.42.0/24 from the 172.20.0.0/16 (or vice versa) through the SSG140, it gives me an error (if it takes more than about 10 seconds to transfer) and Windows says the file is no longer available.
I thought maybe it was a problem with our vintage network switches, so I connected it all up to a brand new switch. Still no dice. I then swapped the primary and backup router and it still does the same thing. If the computers are on the same subnet there is no problem. If I use my switch for subnet routing, it works fine. So I'm not quite sure what the culprit may be, except that it is a problem with the Juniper itself. I have firmware 6.3.0r23.0 installed on both of them. I'm not ready to hard reset them to test it on a black slate, but I may get there if I cannot find a solution. I've used SSG140s for a lot of years and I've never had this problem. It seems odd that both would have this issue if it were hardware related - which leads me to believe that it is a configuration problem or possibly a firmware related obstacle.
Thanks.