@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + NETWORK_FIELD_NUMBER;
    hash = (53 * hash) + getNetwork().hashCode();
    hash = (37 * hash) + SUBNETWORK_FIELD_NUMBER;
    hash = (53 * hash) + getSubnetwork().hashCode();
    hash = (37 * hash) + INTERNAL_IP_FIELD_NUMBER;
    hash = (53 * hash) + getInternalIp().hashCode();
    hash = (37 * hash) + EXTERNAL_IP_FIELD_NUMBER;
    hash = (53 * hash) + getExternalIp().hashCode();
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
The external IP to define in the NIC.
</pre>

<code>string external_ip = 4;</code>

@return The bytes for externalIp.
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/NetworkInterface.java