arp: use valid unicast ip addresses for tests

src/iface/arp_cache.rs

@@ -126,10 +126,10 @@ mod test {
     const HADDR_C: EthernetAddress = EthernetAddress([0, 0, 0, 0, 0, 3]);
     const HADDR_D: EthernetAddress = EthernetAddress([0, 0, 0, 0, 0, 4]);
 
-    const PADDR_A: IpAddress = IpAddress::Ipv4(Ipv4Address([0, 0, 0, 0]));
-    const PADDR_B: IpAddress = IpAddress::Ipv4(Ipv4Address([0, 0, 0, 1]));
-    const PADDR_C: IpAddress = IpAddress::Ipv4(Ipv4Address([0, 0, 0, 2]));
-    const PADDR_D: IpAddress = IpAddress::Ipv4(Ipv4Address([0, 0, 0, 3]));
+    const PADDR_A: IpAddress = IpAddress::Ipv4(Ipv4Address([1, 0, 0, 1]));
+    const PADDR_B: IpAddress = IpAddress::Ipv4(Ipv4Address([1, 0, 0, 2]));
+    const PADDR_C: IpAddress = IpAddress::Ipv4(Ipv4Address([1, 0, 0, 3]));
+    const PADDR_D: IpAddress = IpAddress::Ipv4(Ipv4Address([1, 0, 0, 4]));
 
     #[test]
     fn test_slice_cache() {