Index: sys/netinet/ip_var.h
===================================================================
--- sys/netinet/ip_var.h
+++ sys/netinet/ip_var.h
@@ -52,7 +52,7 @@
 	struct	in_addr ih_dst;		/* destination internet address */
 };
 
-#ifdef _KERNEL
+#if defined(_KERNEL) || defined(_KERNEL_UT)
 /*
  * Ip reassembly queue structure.  Each fragment
  * being reassembled is attached to one of these structures.
@@ -70,7 +70,7 @@
 	u_char	ipq_nfrags;		/* # frags in this packet */
 	struct label *ipq_label;	/* MAC label */
 };
-#endif /* _KERNEL */
+#endif /* _KERNEL  || _KERNEL_UT */
 
 /*
  * Structure stored in mbuf in inpcb.ip_options
@@ -85,7 +85,8 @@
 	char	ipopt_list[MAX_IPOPTLEN];	/* options proper */
 };
 
-#if defined(_NETINET_IN_VAR_H_) && defined(_KERNEL)
+#if defined(_NETINET_IN_VAR_H_) && (defined(_KERNEL)  \
+    || defined(_KERNEL_UT))
 /*
  * Structure attached to inpcb.ip_moptions and
  * passed to ip_output when IP multicast options are in use.
@@ -135,7 +136,7 @@
 	uint64_t ips_badaddr;		/* invalid address on header */
 };
 
-#ifdef _KERNEL
+#if defined(_KERNEL) || defined(_KERNEL_UT)
 
 #include <sys/counter.h>
 #include <net/vnet.h>
@@ -301,6 +302,6 @@
 extern int	(*ng_ipfw_input_p)(struct mbuf **, struct ip_fw_args *, bool);
 extern int	(*ip_dn_ctl_ptr)(struct sockopt *);
 extern int	(*ip_dn_io_ptr)(struct mbuf **, struct ip_fw_args *);
-#endif /* _KERNEL */
+#endif /* _KERNEL  || _KERNEL_UT */
 
 #endif /* !_NETINET_IP_VAR_H_ */
Index: sys/netinet6/ip6_var.h
===================================================================
--- sys/netinet6/ip6_var.h
+++ sys/netinet6/ip6_var.h
@@ -68,7 +68,7 @@
 
 #include <sys/epoch.h>
 
-#ifdef _KERNEL
+#if defined(_KERNEL) || defined(_KERNEL_UT)
 struct ip6asfrag;		/* frag6.c */
 TAILQ_HEAD(ip6fraghead, ip6asfrag);
 
@@ -98,7 +98,8 @@
 	uint32_t	ip6dc_off;	/* offset to next header */
 };
 
-#if defined(_NETINET6_IN6_VAR_H_) && defined(_KERNEL)
+#if defined(_NETINET6_IN6_VAR_H_) && (defined(_KERNEL) \
+    || defined(_KERNEL_UT))
 /*
  * Structure attached to inpcb.in6p_moptions and
  * passed to ip6_output when IPv6 multicast options are in use.
@@ -246,7 +247,7 @@
 	uint64_t ip6s_sources_rule[IP6S_RULESMAX];
 };
 
-#ifdef _KERNEL
+#if defined(_KERNEL) || defined(_KERNEL_UT)
 #include <sys/counter.h>
 
 VNET_PCPUSTAT_DECLARE(struct ip6stat, ip6stat);
@@ -257,7 +258,7 @@
 #define	IP6STAT_DEC(name)	IP6STAT_SUB(name, 1)
 #endif
 
-#ifdef _KERNEL
+#if defined(_KERNEL) || defined(_KERNEL_UT)
 /* flags passed to ip6_output as last parameter */
 #define	IPV6_UNSPECSRC		0x01	/* allow :: as the source address */
 #define	IPV6_FORWARDING		0x02	/* most of IPv6 header exists */
@@ -419,6 +420,6 @@
 u_int32_t ip6_randomid(void);
 u_int32_t ip6_randomflowlabel(void);
 void in6_delayed_cksum(struct mbuf *m, uint32_t plen, u_short offset);
-#endif /* _KERNEL */
+#endif /* _KERNEL || _KERNEL_UT */
 
 #endif /* !_NETINET6_IP6_VAR_H_ */