| This module matches on the bridge port input and output devices enslaved |
| to a bridge device. This module is a part of the infrastructure that enables |
| a transparent bridging IP firewall and is only useful for kernel versions |
| above version 2.5.44. |
| .TP |
| [\fB!\fP] \fB\-\-physdev\-in\fP \fIname\fP |
| Name of a bridge port via which a packet is received (only for |
| packets entering the |
| .BR INPUT , |
| .B FORWARD |
| and |
| .B PREROUTING |
| chains). If the interface name ends in a "+", then any |
| interface which begins with this name will match. If the packet didn't arrive |
| through a bridge device, this packet won't match this option, unless '!' is used. |
| .TP |
| [\fB!\fP] \fB\-\-physdev\-out\fP \fIname\fP |
| Name of a bridge port via which a packet is going to be sent (for bridged packets |
| entering the |
| .BR FORWARD |
| and |
| .B POSTROUTING |
| chains). If the interface name ends in a "+", then any |
| interface which begins with this name will match. |
| .TP |
| [\fB!\fP] \fB\-\-physdev\-is\-in\fP |
| Matches if the packet has entered through a bridge interface. |
| .TP |
| [\fB!\fP] \fB\-\-physdev\-is\-out\fP |
| Matches if the packet will leave through a bridge interface. |
| .TP |
| [\fB!\fP] \fB\-\-physdev\-is\-bridged\fP |
| Matches if the packet is being bridged and therefore is not being routed. |
| This is only useful in the FORWARD and POSTROUTING chains. |
