diff --git a/tests/gnrc_dhcpv6_client_6lbr/Makefile b/tests/gnrc_dhcpv6_client_6lbr/Makefile
index 8682ed6a30..5a2439872a 100644
--- a/tests/gnrc_dhcpv6_client_6lbr/Makefile
+++ b/tests/gnrc_dhcpv6_client_6lbr/Makefile
@@ -5,6 +5,7 @@ export TAP ?= tap0
 
 USEMODULE += auto_init_gnrc_netif
 USEMODULE += gnrc_dhcpv6_client_6lbr
+USEMODULE += gnrc_dhcpv6_client_mud_url
 USEMODULE += gnrc_netdev_default
 USEMODULE += gnrc_pktdump
 USEMODULE += gnrc_sixlowpan_border_router_default
diff --git a/tests/gnrc_dhcpv6_client_6lbr/tests/01-run.py b/tests/gnrc_dhcpv6_client_6lbr/tests/01-run.py
index 8f83b53f5c..0fe215060a 100755
--- a/tests/gnrc_dhcpv6_client_6lbr/tests/01-run.py
+++ b/tests/gnrc_dhcpv6_client_6lbr/tests/01-run.py
@@ -14,13 +14,19 @@ import time
 
 from scapy.all import AsyncSniffer, sendp, Ether, IPv6, UDP
 from scapy.all import DHCP6_Solicit, DHCP6_Advertise, DHCP6_Request, DHCP6_Reply
-from scapy.all import DHCP6OptClientId, DHCP6OptServerId, DHCP6OptIA_PD
+from scapy.all import DHCP6OptClientId, DHCP6OptServerId, DHCP6OptIA_PD, DHCP6OptUnknown
 from scapy.all import DUID_LL, DHCP6OptIAPrefix
 from testrunner import run
 
 
 TIMEOUT = 1
 
+MUD_OPTION_CODE = 112
+MUD_TEST_URL = b'https://example.org'
+
+# MUD URL option in DHCPv6 is not yet supported by scapy
+DHCP6OptMUD = DHCP6OptUnknown
+
 
 def get_upstream_netif(child):
     child.sendline("ifconfig")
@@ -123,6 +129,12 @@ def testfunc(child):
     # and it is asking for a prefix delegation
     assert DHCP6OptIA_PD in pkt
 
+    assert DHCP6OptMUD in pkt
+    mud_packet = pkt[DHCP6OptMUD]
+    assert mud_packet.optcode == 112
+    assert mud_packet.optlen == len(MUD_TEST_URL)
+    assert mud_packet.data == MUD_TEST_URL
+
     # reply to solicit with advertise and a prefix provided
     trid = pkt[DHCP6_Solicit].trid
     srv_duid = "aa:bb:cc:dd:ee:ff"