diff --git a/src/osmo_gsm_tester/obj/epc_open5gs.py b/src/osmo_gsm_tester/obj/epc_open5gs.py
new file mode 100644
index 0000000..15f4eab
--- /dev/null
+++ b/src/osmo_gsm_tester/obj/epc_open5gs.py
@@ -0,0 +1,184 @@
+# osmo_gsm_tester: specifics for running an Open5GS EPC
+#
+# Copyright (C) 2021 by sysmocom - s.f.m.c. GmbH
+#
+# Author: Pau Espin Pedrol <pespin@sysmocom.de>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import pprint
+import copy
+
+from ..core import log, util, config, template, process, remote
+from ..core import schema
+from . import epc
+from .pcrf_open5gs import Open5gsPCRF
+from .upf_open5gs import Open5gsUPF
+from .smf_open5gs import Open5gsSMF
+from .hss_open5gs import Open5gsHSS
+from .mme_open5gs import Open5gsMME
+from .sgwc_open5gs import Open5gsSGWC
+from .sgwu_open5gs import Open5gsSGWU
+
+def on_register_schemas():
+    config_schema = {
+        'db_host': schema.STR,
+        }
+    schema.register_config_schema('epc', config_schema)
+
+class Open5gsEPC(epc.EPC):
+
+    REMOTE_DIR = '/osmo-gsm-tester-open5gs'
+
+    def __init__(self, testenv, run_node):
+        super().__init__(testenv, run_node, 'open5gs_epc')
+        self.run_dir = None
+        self.pcrf = None
+        self.upf = None
+        self.smf = None
+        self.mme = None
+        self.hss = None
+        self.sgwc = None
+        self.sgwu = None
+        self.subscriber_list = []
+
+    def cleanup(self):
+        if self.pcrf:
+            self.pcrf.cleanup()
+        if self.upf:
+            self.upf.cleanup()
+        if self.smf:
+            self.smf.cleanup()
+        if self.hss:
+            self.hss.cleanup()
+        if self.mme:
+            self.mme.cleanup()
+        if self.sgwc:
+            self.sgwc.cleanup()
+        if self.sgwu:
+            self.sgwu.cleanup()
+
+    def configure(self):
+        values = super().configure(['open5gsepc'])
+        db_host = values['epc']['db_host']
+        db_uri = 'mongodb://'+db_host+'/open5gs'
+        config.overlay(values, dict(epc=dict(db_uri=db_uri)))
+        self.fill_subscribers_mongodb(values['epc']['db_host'], 27017)
+        self.pcrf = Open5gsPCRF(self.testenv, self)
+        self.upf = Open5gsUPF(self.testenv, self)
+        self.smf = Open5gsSMF(self.testenv, self)
+        self.hss = Open5gsHSS(self.testenv, self)
+        self.mme = Open5gsMME(self.testenv, self)
+        self.sgwc = Open5gsSGWC(self.testenv, self)
+        self.sgwu = Open5gsSGWU(self.testenv, self)
+        self.pcrf.configure(copy.deepcopy(values))
+        self.upf.configure(copy.deepcopy(values))
+        self.smf.configure(copy.deepcopy(values))
+        self.hss.configure(copy.deepcopy(values))
+        self.mme.configure(copy.deepcopy(values))
+        self.sgwc.configure(copy.deepcopy(values))
+        self.sgwu.configure(copy.deepcopy(values))
+
+    def start(self):
+        self.log('Starting srsepc')
+        self.run_dir = util.Dir(self.testenv.test().get_run_dir().new_dir(self.name()))
+        self.configure()
+        self.pcrf.start()
+        self.upf.start()
+        self.smf.start()
+        self.hss.start()
+        self.mme.start()
+        self.sgwc.start()
+        self.sgwu.start()
+
+    def subscriber_add(self, modem, msisdn=None, algo_str=None):
+        if msisdn is None:
+            msisdn = modem.msisdn()
+
+        if algo_str is None:
+            algo_str = modem.auth_algo() or 'milenage'
+
+        if algo_str == 'milenage':
+            if not modem.ki():
+                raise log.Error("Auth algo milenage selected but no KI specified")
+            if not modem.opc():
+                raise log.Error("Auth algo milenage selected but no OPC specified")
+        else:
+            raise log.Error("Open5Gs only supports auth algo: milenage")
+
+        subscriber_id = len(self.subscriber_list) # list index
+        self.subscriber_list.append({'id': subscriber_id, 'imsi': modem.imsi(), 'msisdn': msisdn, 'auth_algo': algo_str, 'ki': modem.ki(), 'opc': modem.opc(), 'apn_ipaddr': modem.apn_ipaddr()})
+        return subscriber_id
+
+    def fill_subscribers_mongodb(self, server, port):
+        import pymongo
+
+        myclient = pymongo.MongoClient("mongodb://" + str(server) + ":" + str(port) + "/")
+        mydb = myclient["open5gs"]
+        mycol = mydb["subscribers"]
+
+        for s in self.subscriber_list:
+            self.log('Insert subscriber to DB', msisdn=s['msisdn'], imsi=s['imsi'], subscriber_id=s['id'],
+                     algo_str=s['auth_algo'])
+            slice_data = [ { \
+                "sst": 1, \
+                "default_indicator": True, \
+                "session": [ \
+                    { \
+                    "name": "internet", \
+                    "type": 3, "pcc_rule": [], "ambr": {"uplink": {"value": 1, "unit": 0}, "downlink": {"value": 1, "unit": 0}}, \
+                    "qos": { "index": 9, "arp": {"priority_level": 8, "pre_emption_capability": 1, "pre_emption_vulnerability": 1} } \
+                    } \
+                ] \
+            } ]
+
+            sub_data = {'imsi':  s['imsi'], \
+                        'subscribed_rau_tau_timer': 12, \
+                        'network_access_mode': 2, \
+                        'subscriber_status': 0, \
+                        "access_restriction_data": 32, \
+                        'slice': slice_data, \
+                        'ambr': {"uplink": {"value": 1, "unit": 0}, "downlink": {"value": 1, "unit": 0}}, \
+                        'security': {'k': s['ki'], 'amf': '8000', 'op': None, 'opc': s['opc']},
+                        'schema_version': 1, \
+                        '__v': 0}
+            x = mycol.insert_one(sub_data)
+            self.dbg("Added subscriber with Inserted ID : " + str(x.inserted_id))
+            s['inserted_id'] = x.inserted_id
+
+    def enb_is_connected(self, enb):
+        # Match against sample mmed line: "eNB-S1 accepted[172.18.50.101]:50867"
+        if not self.mme or not self.mme.running():
+            return False
+        stdout_lines = (self.mme.process.get_stdout() or '').splitlines()
+        for l in stdout_lines:
+            if 'eNB' in l and 'accepted' in l and enb.addr() in l:
+                return True
+        return False
+
+    def running(self):
+        return self.pcrf and self.upf and self.smf and self.hss and \
+               self.mme and self.sgwc and self.sgwu and \
+               self.pcrf.running() and self.upf.running() and self.smf.running() and \
+               self.hss.running() and self.mme.running() and self.sgwc.running() and \
+               self.sgwu.running()
+
+    def tun_addr(self):
+        return '172.16.0.1'
+
+    def get_kpis(self):
+        return {}
+
+# vim: expandtab tabstop=4 shiftwidth=4