public Builder clearExternalIp() {
      externalIp_ = getDefaultInstance().getExternalIp();
      bitField0_ = (bitField0_ & ~0x00000008);
      onChanged();
      return this;
    }
<pre>
The external IP to define in the NIC.
</pre>

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

@return This builder for chaining.
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/NetworkInterface.java