PSC FALCON 315 - Manual (Page 8)

Introduction
Patch version A
09-07-05
This change will cause the DOS emulators to use a random source port between 2000 and
2100 on each outbound host connection.
Prior to this, they used the same source port number and this would cause problems with
some IBM hosts and Firewalls. This would lead to long timeout periods (5-30 minutes)
on IBM hosts and lockouts under Firewalls that looked at this as a possible denial of
service attack.
Supported Equipment Manual
• May, 2006 1-4