diff --git a/tests/docker-ocserv/ocserv-pam.conf b/tests/docker-ocserv/ocserv-pam.conf
index 448c336a..e7cc2b88 100644
--- a/tests/docker-ocserv/ocserv-pam.conf
+++ b/tests/docker-ocserv/ocserv-pam.conf
@@ -207,7 +207,7 @@ device = vpns
 default-domain = example.com
 
 # The pool of addresses that leases will be given from.
-ipv4-network = 192.168.1.0
+ipv4-network = 192.168.56.0
 ipv4-netmask = 255.255.255.0
 
 # The advertized DNS server. Use multiple lines for
@@ -219,7 +219,7 @@ ipv4-netmask = 255.255.255.0
 #nbns = 192.168.1.3
 
 # The IPv6 subnet that leases will be given from.
-ipv6-network = fd91:6d87:7341:db6a::
+ipv6-network = fd91:6d87:7341:dc6b::
 ipv6-prefix = 64
 
 # The domains over which the provided DNS should be used. Use
@@ -249,9 +249,9 @@ ping-leases = false
 #
 # To set the server as the default gateway for the client just
 # comment out all routes from the server.
-route = 192.168.1.0/255.255.255.0
+route = 192.168.56.0/255.255.255.0
 #route = 192.168.5.0/255.255.255.0
-route = fd91:6d87:7341:db6a::/64
+route = fd91:6d87:7341:dc6b::/64
 
 # Configuration files that will be applied per user connection or
 # per group. Each file name on these directories must match the username
diff --git a/tests/docker-ocserv/ocserv-radius.conf b/tests/docker-ocserv/ocserv-radius.conf
index 770ebd10..18f3af24 100644
--- a/tests/docker-ocserv/ocserv-radius.conf
+++ b/tests/docker-ocserv/ocserv-radius.conf
@@ -210,7 +210,7 @@ device = vpns
 default-domain = example.com
 
 # The pool of addresses that leases will be given from.
-ipv4-network = 192.168.1.0
+ipv4-network = 192.168.55.0
 ipv4-netmask = 255.255.255.0
 
 # The advertized DNS server. Use multiple lines for
@@ -222,7 +222,7 @@ ipv4-netmask = 255.255.255.0
 #nbns = 192.168.1.3
 
 # The IPv6 subnet that leases will be given from.
-ipv6-network = fd91:6d87:7341:db6a::
+ipv6-network = fd91:6d87:7341:dd6b::
 ipv6-prefix = 64
 
 # The domains over which the provided DNS should be used. Use
@@ -252,9 +252,9 @@ ping-leases = false
 #
 # To set the server as the default gateway for the client just
 # comment out all routes from the server.
-route = 192.168.1.0/255.255.255.0
+route = 192.168.55.0/255.255.255.0
 #route = 192.168.5.0/255.255.255.0
-route = fd91:6d87:7341:db6a::/64
+route = fd91:6d87:7341:dd6b::/64
 
 # Configuration files that will be applied per user connection or
 # per group. Each file name on these directories must match the username
diff --git a/tests/pam-test b/tests/pam-test
index c82e1d82..be3b7e90 100755
--- a/tests/pam-test
+++ b/tests/pam-test
@@ -77,21 +77,21 @@ rm -f pass-pam.tmp
 sleep 5
 
 # The client IP depends on the username so it shouldn't change.
-ping -w 5 192.168.1.1
+ping -w 5 192.168.56.1
 if test $? != 0;then
 	kill $PID
 	echo "Cannot ping ocserv"
 	stop
 fi
 
-ping -w 5 192.168.1.1 -s 1500
+ping -w 5 192.168.56.1 -s 1500
 if test $? != 0;then
 	kill $PID
 	echo "Cannot ping ocserv"
 	stop
 fi
 
-ping6 -w 5 fd91:6d87:7341:db6a::1
+ping6 -w 5 fd91:6d87:7341:dc6b::1
 if test $? != 0;then
 	kill $PID
 	echo "Cannot ping the IPv6 of ocserv"
@@ -105,14 +105,14 @@ printf "echo root" >>echo-admin.tmp
 printf "\n" >>echo-admin.tmp
 chmod 755 echo-admin.tmp
 export SSH_ASKPASS="./echo-admin.tmp"
-setsid ssh -T -F config.tmp root@192.168.1.1 occtl show user testuser >out.tmp 2>&1
+setsid ssh -T -F config.tmp root@192.168.56.1 occtl show user testuser >out.tmp 2>&1
 cat out.tmp
 
 printf "#\!/bin/sh\n" >echo-admin.tmp
 printf "echo root" >>echo-admin.tmp
 printf "\n" >>echo-admin.tmp
 chmod 755 echo-admin.tmp
-setsid ssh -T -F config.tmp root@192.168.1.1 occtl show user testuser >out.tmp 2>&1
+setsid ssh -T -F config.tmp root@192.168.56.1 occtl show user testuser >out.tmp 2>&1
 cat out.tmp
 rm -f echo-admin.tmp
 rm -f config.tmp
@@ -130,14 +130,14 @@ rm -f out.tmp
 # There is an issue in nuttcp that makes it crash under docker if
 # /proc/sys/net/ipv4/tcp_adv_win_scale does not exist.
 if test "$FEDORA" = 1;then
-nuttcp -T 10 -t 192.168.1.1
+nuttcp -T 10 -t 192.168.56.1
 if test $? != 0;then
 	kill $PID
 	echo "Cannot send to ocserv"
 	stop
 fi
 
-nuttcp -T 10 -r 192.168.1.1
+nuttcp -T 10 -r 192.168.56.1
 if test $? != 0;then
 	kill $PID
 	echo "Cannot recv from ocserv"
diff --git a/tests/radius-test b/tests/radius-test
index 05be1821..f33f2a2b 100755
--- a/tests/radius-test
+++ b/tests/radius-test
@@ -79,21 +79,21 @@ rm -f pass-radius.tmp
 sleep 5
 
 # The client IP depends on the username so it shouldn't change.
-ping -w 5 192.168.1.1
+ping -w 5 192.168.55.1
 if test $? != 0;then
 	kill $PID
 	echo "Cannot ping ocserv"
 	stop
 fi
 
-ping -w 5 192.168.1.1 -s 1500
+ping -w 5 192.168.55.1 -s 1500
 if test $? != 0;then
 	kill $PID
 	echo "Cannot ping ocserv"
 	stop
 fi
 
-ping6 -w 5 fd91:6d87:7341:db6a::1
+ping6 -w 5 fd91:6d87:7341:dd6b::1
 if test $? != 0;then
 	kill $PID
 	echo "Cannot ping the IPv6 of ocserv"
@@ -107,14 +107,14 @@ printf "echo root" >>echo-admin.tmp
 printf "\n" >>echo-admin.tmp
 chmod 755 echo-admin.tmp
 export SSH_ASKPASS="./echo-admin.tmp"
-setsid ssh -T -F config.tmp root@192.168.1.1 occtl show user test >out.tmp 2>&1
+setsid ssh -T -F config.tmp root@192.168.55.1 occtl show user test >out.tmp 2>&1
 cat out.tmp
 
 printf "#\!/bin/sh\n" >echo-admin.tmp
 printf "echo root" >>echo-admin.tmp
 printf "\n" >>echo-admin.tmp
 chmod 755 echo-admin.tmp
-setsid ssh -T -F config.tmp root@192.168.1.1 occtl show user test >out.tmp 2>&1
+setsid ssh -T -F config.tmp root@192.168.55.1 occtl show user test >out.tmp 2>&1
 cat out.tmp
 rm -f echo-admin.tmp
 rm -f config.tmp
@@ -132,14 +132,14 @@ rm -f out.tmp
 # There is an issue in nuttcp that makes it crash under docker if
 # /proc/sys/net/ipv4/tcp_adv_win_scale does not exist.
 if test "$FEDORA" = 1;then
-nuttcp -T 10 -t 192.168.1.1
+nuttcp -T 10 -t 192.168.55.1
 if test $? != 0;then
 	kill $PID
 	echo "Cannot send to ocserv"
 	stop
 fi
 
-nuttcp -T 10 -r 192.168.1.1
+nuttcp -T 10 -r 192.168.55.1
 if test $? != 0;then
 	kill $PID
 	echo "Cannot recv from ocserv"