Index: share/man/man4/ipfirewall.4
===================================================================
--- share/man/man4/ipfirewall.4
+++ share/man/man4/ipfirewall.4
@@ -8,10 +8,8 @@
 .Nm ipfw
 .Nd IP packet filter and traffic accounting
 .Sh SYNOPSIS
-To compile
-the driver
-into the kernel, place the following option in the kernel configuration
-file:
+To compile the driver into the kernel,
+place the following option in the kernel configuration file:
 .Bd -ragged -offset indent
 .Cd "options IPFIREWALL"
 .Ed
@@ -30,9 +28,8 @@
 .Cd "options LIBALIAS"
 .Ed
 .Pp
-To load
-the driver
-as a module at boot time, add the following line into the
+To load the driver as a module at boot time,
+add the following line into the
 .Xr loader.conf 5
 file:
 .Bd -literal -offset indent
@@ -41,11 +38,9 @@
 .Sh DESCRIPTION
 The
 .Nm
-system facility allows filtering,
-redirecting, and other operations on
-.Tn IP
-packets travelling through
-network interfaces.
+system facility allows filtering, redirecting,
+and other operations on IP packets
+travelling through network interfaces.
 .Pp
 The default behavior of
 .Nm
@@ -67,17 +62,14 @@
 .Xr natd 8
 in conjunction with
 .Nm
-as
-.Tn NAT
-facility, the kernel option
+as NAT facility,
+the kernel option
 .Dv IPDIVERT
 enables diverting packets to
 .Xr natd 8
 for translation.
 .Pp
-When using the in-kernel
-.Tn NAT
-facility of
+When using the in-kernel NAT facility of
 .Nm ,
 the kernel option
 .Dv IPFIREWALL_NAT
@@ -85,21 +77,13 @@
 .Xr libalias 3
 functionality in the kernel.
 .Pp
-When using any of the
-.Tn IPv4
-to
-.Tn IPv6
-transition mechanisms in
+When using any of the IPv4 to IPv6 transition mechanisms in
 .Nm ,
 the kernel option
 .Dv IPFIREWALL_NAT64
-enables all of these
-.Tn NAT64
-methods in the kernel.
+enables all of these NAT64 methods in the kernel.
 .Pp
-When using the
-.Tn IPv6
-network prefix translation facility of
+When using the IPv6 network prefix translation facility of
 .Nm ,
 the kernel option
 .Dv IPFIREWALL_NPTV6
@@ -124,9 +108,7 @@
 This option may be set to the number of packets which will be logged on
 a per-entry basis before the entry is rate-limited.
 .Pp
-When using the in-kernel
-.Tn NAT
-facility of
+When using the in-kernel NAT facility of
 .Nm ,
 the kernel option
 .Dv LIBALIAS