Installation guide

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Adding Physical Interfaces for Master Engines
5. Click OK. The Physical Interface is added to the interface list.
6. Repeat from Step 2 to add any other Physical Interfaces.
MTU
(Optional)
The MTU (maximum transmission unit) size for Virtual Layer 2 Firewalls
that use this interface. Either enter a value between 400-65535 or select
a common MTU value from the list.
The default value (also the maximum standard MTU in Ethernet) is 1500.
Do not set a value larger than the standard MTU unless you know that all
the devices along the communications path support it.
Reset Interface
(Optional, Capture Interface
only)
Select a TCP Reset Interface for traffic picked up through this Capture
Interface. This is the interface through which TCP connection resets are
sent when Reset responses are used in your Layer 2 Firewall policy.
What’s Next?
 If you want to use VLANs on a Physical Interface, add the VLANs before adding IP
addresses. Proceed to Adding VLAN Interfaces for Master Engines (page 74).
 Otherwise, add IP addresses directly to the Physical Interfaces used for Master Engine
communications as instructed in Adding IPv4 Addresses for Master Engines (page 76).
Table 8.2 Physical Interface Properties for Hosted Virtual Layer 2 Firewall Communications (Continued)
Options Explanation