diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f0e5548..3ab6872 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,4 +1,4 @@
-name: Build
+name: Check proto
 
 on:
   push:
@@ -36,3 +36,7 @@ jobs:
         run: |
           if [ ! -d target ]; then mkdir target; fi
           protoc --rust_opt='experimental-codegen=enabled,kernel=cpp' --rust_out=./target psh.proto
+
+      - name: Test
+        run: |
+          cargo test --workspace
diff --git a/rust/src/lib.rs b/rust/src/lib.rs
index 08aa0f4..e57b17d 100644
--- a/rust/src/lib.rs
+++ b/rust/src/lib.rs
@@ -1 +1,30 @@
 tonic::include_proto!("psh.proto.instance");
+
+impl From<std::net::Ipv6Addr> for Ipv6Addr {
+    fn from(value: std::net::Ipv6Addr) -> Self {
+        let ip = value.to_bits().to_be();
+        let high = (ip >> 64) as u64;
+        let low = ip as u64;
+        Self {
+            hi_64_bits: high,
+            lo_64_bits: low,
+        }
+    }
+}
+
+#[test]
+fn test_ipv6_into_pb_repr() {
+    use std::net::Ipv6Addr as StdIpv6Addr;
+
+    let var: u128 = 1;
+
+    let raw = StdIpv6Addr::from_bits(var);
+
+    let pb_repr: Ipv6Addr = raw.into();
+
+    let hi = (pb_repr.hi_64_bits as u128) << 64;
+    let lo = pb_repr.lo_64_bits as u128;
+    let ip = StdIpv6Addr::from_bits(u128::from_be(hi | lo));
+
+    assert_eq!(ip, StdIpv6Addr::from_bits(1));
+}