def METHOD_NAME(salt_cli, proxy_ids):
    """
    Ensure the proxy can ping (all proxy minions)
    """
    pkg_list = {"apache": "2.4", "coreutils": "1.0", "redbull": "999.99", "tinc": "1.4"}
    ret = salt_cli.run("-L", "pkg.list_pkgs", minion_tgt=",".join(proxy_ids))
    for _id in proxy_ids:
        assert ret.data[_id] == pkg_list