diff --git a/tests/sys/netpfil/pf/pft_read_ipfix.py b/tests/sys/netpfil/pf/pft_read_ipfix.py
index 2c11bdfd130c..02ef2ca5ab06 100644
--- a/tests/sys/netpfil/pf/pft_read_ipfix.py
+++ b/tests/sys/netpfil/pf/pft_read_ipfix.py
@@ -1,109 +1,109 @@
 #!/usr/bin/env python3
 #
 # SPDX-License-Identifier: BSD-2-Clause
 #
 # Copyright © 2023. Rubicon Communications, LLC (Netgate). All Rights Reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 # 1. Redistributions of source code must retain the above copyright
 #    notice, this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.
 #
 
 import argparse
 import logging
 logging.getLogger("scapy").setLevel(logging.CRITICAL)
 import scapy.all as sp
 
 def parse_ipfix(p):
 	if not sp.NetflowDataflowsetV9 in p:
 		# A template?
 		return
 
 	c = p
 	while sp.NetflowDataflowsetV9 in c:
 		datafl = c[sp.NetflowDataflowsetV9]
 		if datafl.templateID == 258:
 			# NAT
 			for r in datafl.records:
 				print("v=10,NAT=%d,proto=%s,src=%s-%s,dst=%s-%s" %
 				    (int.from_bytes(r.natEvent, "big"), r.PROTOCOL,
 				     r.IPV4_SRC_ADDR, r.postNATSourceIPv4Address,
 				     r.IPV4_DST_ADDR, r.postNATDestinationIPv4Address))
 		elif datafl.templateID == 257:
 			# IPv6
 			for r in datafl.records:
 				print("v=10,IPv6,proto=%s,src=%s,dst=%s" %
 				    (r.PROTOCOL, r.IPV6_SRC_ADDR, r.IPV6_DST_ADDR))
 		elif datafl.templateID == 256:
 			# IPv4
 			for r in datafl.records:
 				print("v=10,proto=%s,src=%s,dst=%s" %
 				    (r.PROTOCOL, r.IPV4_SRC_ADDR, r.IPV4_DST_ADDR))
 
 		c = datafl.payload
 
 def receive(recvif, recvport):
-	pkts = sp.sniff(iface=recvif, timeout=65)
+	pkts = sp.sniff(iface=recvif, timeout=65, filter="udp port 2055")
 
 	if len(pkts) == 0:
 		print("No data")
 		return
 
 	pkts = sp.ipfix_defragment(pkts)
 
 	for pkt in pkts:
 		udp = pkt.getlayer(sp.UDP)
 		if not udp:
 			continue
 
 		if udp.dport != recvport:
 			continue
 
 		if not sp.NetflowHeader in pkt:
 			continue
 
 		hdr = pkt.getlayer(sp.NetflowHeader)
 		if hdr.version == 5:
 			v5hdr = pkt.getlayer(sp.NetflowHeaderV5)
 			out=""
 			for i in range(1, v5hdr.count + 1):
 				r = pkt.getlayer(sp.NetflowRecordV5, nb=i)
 				print("v=%d,proto=%d,src=%s,dst=%s,srcport=%d,dstport=%d" %
 				    (hdr.version, r.prot, r.src, r.dst, r.srcport, r.dstport))
 		elif hdr.version == 10:
 			parse_ipfix(pkt)
 
 def main():
 	parser = argparse.ArgumentParser("pft_read_ipfix.py",
 	    description="IPFix test tool")
 	parser.add_argument('--recvif', nargs=1,
 	    required=True,
 	    help='The interface on which to look for packets')
 	parser.add_argument('--port', nargs=1,
 	    required=True,
 	    help='The port number')
 
 	args = parser.parse_args()
 
 	receive(args.recvif[0], int(args.port[0]))
 
 if __name__ == '__main__':
 	main()