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-rw-r--r--nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/NatInstaceCustomizer.java7
1 files changed, 7 insertions, 0 deletions
diff --git a/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/NatInstaceCustomizer.java b/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/NatInstaceCustomizer.java
index fa5cfa8e2..8e5673003 100644
--- a/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/NatInstaceCustomizer.java
+++ b/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/NatInstaceCustomizer.java
@@ -42,5 +42,12 @@ final class NatInstaceCustomizer implements ListWriterCustomizer<NatInstance, Na
@Nonnull final NatInstance dataBefore, @Nonnull final WriteContext writeContext)
throws WriteFailedException {
LOG.trace("Deleting nat-instance: {}", id);
+
+ // For consistency with reader, forbid removing default NAT instance:
+ final Long vrfId = id.firstKeyOf(NatInstance.class).getId();
+ if (vrfId == 0) {
+ throw new WriteFailedException.DeleteFailedException(id,
+ new UnsupportedOperationException("Removing default NAT instance (vrf=0) is not supported."));
+ }
}
}