diff --git a/staticlibs/native/bpf_headers/include/bpf/bpf_helpers.h b/staticlibs/native/bpf_headers/include/bpf/bpf_helpers.h
index a21e685..35d9f31 100644
--- a/staticlibs/native/bpf_headers/include/bpf/bpf_helpers.h
+++ b/staticlibs/native/bpf_headers/include/bpf/bpf_helpers.h
@@ -46,9 +46,10 @@
  *
  * While this will work outside of mainline too, there just is no point to
  * using it when the .o and the bpfloader ship in sync with each other.
+ * In which case it's just best to use the default.
  */
 #ifndef BPFLOADER_MIN_VER
-#define BPFLOADER_MIN_VER DEFAULT_BPFLOADER_MIN_VER
+#define BPFLOADER_MIN_VER COMPILE_FOR_BPFLOADER_VERSION
 #endif
 
 #ifndef BPFLOADER_MAX_VER
diff --git a/staticlibs/native/bpf_headers/include/bpf/bpf_map_def.h b/staticlibs/native/bpf_headers/include/bpf/bpf_map_def.h
index 2d47426..02caf07 100644
--- a/staticlibs/native/bpf_headers/include/bpf/bpf_map_def.h
+++ b/staticlibs/native/bpf_headers/include/bpf/bpf_map_def.h
@@ -48,6 +48,10 @@
 #define DEFAULT_SIZEOF_BPF_MAP_DEF 32       // v0.0 struct: enum (uint sized) + 7 uint
 #define DEFAULT_SIZEOF_BPF_PROG_DEF 20      // v0.0 struct: 4 uint + bool + 3 byte alignment pad
 
+// By default, unless otherwise specified, allow the use of features only supported by v0.28,
+// which first added working support for map uid != root
+#define COMPILE_FOR_BPFLOADER_VERSION 28u
+
 /*
  * The bpf_{map,prog}_def structures are compiled for different architectures.
  * Once by the BPF compiler for the BPF architecture, and once by a C++
diff --git a/staticlibs/testutils/devicetests/com/android/testutils/RouterAdvertisementResponder.java b/staticlibs/testutils/devicetests/com/android/testutils/RouterAdvertisementResponder.java
index 91c3f76..21cb149 100644
--- a/staticlibs/testutils/devicetests/com/android/testutils/RouterAdvertisementResponder.java
+++ b/staticlibs/testutils/devicetests/com/android/testutils/RouterAdvertisementResponder.java
@@ -19,6 +19,7 @@
 import static android.system.OsConstants.IPPROTO_ICMPV6;
 
 import static com.android.net.module.util.NetworkStackConstants.ETHER_TYPE_IPV6;
+import static com.android.net.module.util.NetworkStackConstants.ICMPV6_ND_OPTION_SLLA;
 import static com.android.net.module.util.NetworkStackConstants.ICMPV6_ND_OPTION_TLLA;
 import static com.android.net.module.util.NetworkStackConstants.ICMPV6_NEIGHBOR_SOLICITATION;
 import static com.android.net.module.util.NetworkStackConstants.ICMPV6_ROUTER_SOLICITATION;
@@ -114,10 +115,15 @@
         return RdnssOption.build(3600/*lifetime, must be at least 120*/, DNS_SERVER);
     }
 
+    private ByteBuffer buildSllaOption(MacAddress srcMac) {
+        return LlaOption.build((byte) ICMPV6_ND_OPTION_SLLA, srcMac);
+    }
+
     private ByteBuffer buildRaPacket(MacAddress srcMac, MacAddress dstMac, Inet6Address srcIp) {
         return Ipv6Utils.buildRaPacket(srcMac, dstMac, srcIp, IPV6_ADDR_ALL_NODES_MULTICAST,
                 (byte) 0 /*M=0, O=0*/, 3600 /*lifetime*/, 0 /*reachableTime, unspecified*/,
-                0/*retransTimer, unspecified*/, buildPrefixOption(), buildRdnssOption());
+                0/*retransTimer, unspecified*/, buildPrefixOption(), buildRdnssOption(),
+                buildSllaOption(srcMac));
     }
 
     private static void sendResponse(TapPacketReader reader, ByteBuffer buffer) {