Beta Draft Confidential
20-121/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Port Security Screening
Administrative Tasks
Table 20-4. Activate and Assign Security Screen Dialog Box
Field Description
Ingress Screen 
Mode
Choose one of the following buttons to configure how incoming 
SVCs are screened: 
• All Screens – Indicates that all ingress screens you apply to this 
port determine whether an incoming SVC is passed or blocked.
• Default Screen – Disables (default) the ingress security screens 
applied to this port. Incoming SVCs are screened according to 
how you set the Default Ingress Screen.
Default Ingress 
Screen
Choose one of the following buttons to specify what action the 
Default ingress security screen will take when the Ingress Screen 
mode is set to Default Screen: 
• Pass – All incoming SVCs to this port are passed (default).
• Block – All incoming SVCs to this port are blocked.
Egress Screen 
Mode
Choose one of the following buttons to specify what type of egress 
security screens will be used: 
• Default Screen – Disables (default) the egress security screens 
applied to this port. Outgoing SVCs are screened according to 
how you set the Default Egress Screen.
• All Screens – Indicates that all egress screens you apply to this 
port determine whether an outgoing SVC is passed or blocked.
Default Egress 
Screen
Choose a button to specify what action the Default egress security 
screen will take when the Egress Screen mode is set to Default 
Screen: 
• Pass – All outgoing SVCs from this port are passed (default).
• Block – All outgoing SVCs from this port are blocked.