test-network: refuse RA if not necessary

test/test-network/conf/25-activation-policy.network

@@ -4,3 +4,4 @@ Name=test1
 [Network]
 Address=192.168.10.30/24
 Gateway=192.168.10.1
+IPv6AcceptRA=no

test/test-network/conf/25-nexthop-dummy.network

@@ -3,6 +3,7 @@ Name=dummy98
 
 [Network]
 Address=192.168.20.20/24
+IPv6AcceptRA=no
 
 [NextHop]
 Id=20

test/test-network/conf/25-wireguard-23-peers.network

@@ -4,6 +4,7 @@ Name=wg98
 [Network]
 Address=192.168.123.123/24
 Address=fd8d:4d6d:3ccb:0500::1/64
+IPv6AcceptRA=no
 
 # nat64 via 1
 [Route]

test/test-network/conf/25-wireguard.network

@@ -3,3 +3,4 @@ Name=wg99
 
 [Network]
 Address=192.168.124.1/24
+IPv6AcceptRA=no

test/test-network/conf/agent-client-peer.network

@@ -1,9 +1,12 @@
 [Match]
 Name=client-peer
+
 [Network]
 Address=192.168.6.2/24
 DHCPServer=yes
 IPForward=ipv4
+IPv6AcceptRA=no
+
 [DHCPServer]
 RelayTarget=192.168.5.1
 BindToInterface=no

test/test-network/conf/agent-client.network

@@ -1,5 +1,7 @@
 [Match]
 Name=client
+
 [Network]
 DHCP=yes
 IPForward=ipv4
+IPv6AcceptRA=no

test/test-network/conf/agent-server-peer.network

@@ -1,5 +1,7 @@
 [Match]
 Name=server-peer
+
 [Network]
 Address=192.168.5.2/24
 IPForward=ipv4
+IPv6AcceptRA=no

test/test-network/conf/agent-server.network

@@ -1,9 +1,11 @@
 [Match]
 Name=server
+
 [Network]
 Address=192.168.5.1/24
 IPForward=ipv4
 DHCPServer=yes
+IPv6AcceptRA=no
 
 [DHCPServer]
 BindToInterface=no