CA-81362: raise the correct error when the destination address cannot be contacted
CA-81362: raise the correct error when the destination address cannot be contacted

Signed-off-by: Thomas Gazagnaire <d17b540e4bd20a6d2c62b93674760725b3f75517@ocamlpro.com>

djs55/xcp-networkd,koushikcgit/xcp-networkd,simonjbeaumont/xcp-rrdd,djs55/squeezed,koushikcgit/xcp-rrdd,djs55/xcp-rrdd,koushikcgit/xcp-rrdd,koushikcgit/xcp-rrdd,robhoes/squeezed,djs55/xcp-networkd,johnelse/xcp-rrdd,sharady/xcp-networkd,koushikcgit/xcp-networkd,simonjbeaumont/xcp-rrdd,sharady/xcp-networkd,djs55/xcp-rrdd,johnelse/xcp-rrdd