diff --git a/sbin/ifconfig/ifconfig.8 b/sbin/ifconfig/ifconfig.8
--- a/sbin/ifconfig/ifconfig.8
+++ b/sbin/ifconfig/ifconfig.8
@@ -137,7 +137,6 @@
 and their associated
 .Ar format
 strings are:
-.Pp
 .Bl -tag -width default
 .It Cm addr
 Adjust the display of inet and inet6 addresses:
@@ -212,7 +211,6 @@
 Shortcut notation for
 .Cm inet:cidr,inet6:cidr .
 .El
-.Pp
 .It Fl G Ar groupname
 Exclude members of the specified
 .Ar groupname
@@ -541,6 +539,16 @@
 .Em vlan10
 is a member of the VLAN interface family group,
 .Em vlan .
+.Pp
+Interface groups allow one or more interfaces to be grouped
+under a common name.
+These groups are used by packet filters such as
+.Xr pf 4 ,
+routing daemons, or administrative scripts to apply
+policies collectively.
+Assigning an interface to a group has no functional
+effect unless that group is referenced in other parts
+of the system configuration.
 .It Cm -group Ar groupname
 Remove the interface from the given
 .Dq group .
@@ -3173,7 +3181,7 @@
 .It Cm carpver
 Set the protocol version.
 Valid choices are 2 (for
-.Xr carp 4)
+.Xr carp 4 )
 and 3 (for VRRPv3).
 This can only be set when
 .Xr carp 4
@@ -3315,6 +3323,7 @@
 .Xr carp 4 ,
 .Xr gif 4 ,
 .Xr netintro 4 ,
+.Xr pf 4 ,
 .Xr pfsync 4 ,
 .Xr polling 4 ,
 .Xr vlan 4 ,