Update SCTP authentication enable call

Change-Id: Id18194a2f4457d40e1176d249cb71c1380be1b64
Signed-off-by: James Kuszmaul <james.kuszmaul@bluerivertech.com>
diff --git a/aos/network/BUILD b/aos/network/BUILD
index d1a79d0..e8dd75f 100644
--- a/aos/network/BUILD
+++ b/aos/network/BUILD
@@ -194,6 +194,7 @@
     tags = [
         # Fakeroot is required to enable "net.sctp.auth_enable".
         "requires-fakeroot",
+        "no-remote-exec",
     ],
     target_compatible_with = ["@platforms//cpu:x86_64"],
     deps = [
diff --git a/aos/network/sctp_test.cc b/aos/network/sctp_test.cc
index 8e332e4..458d2d1 100644
--- a/aos/network/sctp_test.cc
+++ b/aos/network/sctp_test.cc
@@ -28,7 +28,9 @@
 namespace {
 void EnableSctpAuthIfAvailable() {
 #if HAS_SCTP_AUTH
-  CHECK(system("/usr/sbin/sysctl net.sctp.auth_enable=1 || /sbin/sysctl "
+  CHECK(system("/usr/sbin/modprobe sctp || /sbin/modprobe sctp; "
+               "/usr/sbin/sysctl net.sctp.auth_enable=1 || "
+               "/sbin/sysctl "
                "net.sctp.auth_enable=1") == 0)
       << "Couldn't enable sctp authentication.";
 #endif