diff --git a/recipes-extra/dnsmasq/files/sysmocom-idu/dnsmasq.conf b/recipes-extra/dnsmasq/files/sysmocom-idu/dnsmasq.conf
index 5c7100d..3a493d0 100755
--- a/recipes-extra/dnsmasq/files/sysmocom-idu/dnsmasq.conf
+++ b/recipes-extra/dnsmasq/files/sysmocom-idu/dnsmasq.conf
@@ -130,10 +130,10 @@ dhcp-range=mgmt,172.16.2.10,172.16.3.254,255.255.254.0,168h
 dhcp-range=native,172.16.4.10,172.16.4.254,255.255.254.0,168h
 
 # DHCP range for administrative access via eth1
-dhcp-range=admin,172.16.6.2,172.16.6.255,255.255.255.0,24h
+dhcp-range=admin,172.16.6.2,172.16.6.254,255.255.255.0,24h
 
 # DHCP range for all BTS
-dhcp-range=gsm,172.16.7.10,172.16.7.255,255.255.255.0,168h
+dhcp-range=gsm,172.16.7.10,172.16.7.254,255.255.255.0,168h
 
 # DHCH range for WiFi networks
 dhcp-range=wifi-admin,172.16.8.10,172.16.8.254,255.255.255.0,24h