diff --git a/ci-scripts/conf_files/cu.band7.tm1.100PRB.conf b/ci-scripts/conf_files/cu.band7.tm1.100PRB.conf
index becd484c56..42cade271c 100644
--- a/ci-scripts/conf_files/cu.band7.tm1.100PRB.conf
+++ b/ci-scripts/conf_files/cu.band7.tm1.100PRB.conf
@@ -181,6 +181,7 @@ eNBs = (
       {
         ipv4       = "CI_MME_IP_ADDR";
         ipv6       = "192:168:30::17";
+        port       = 36412 ;
         active     = "yes";
         preference = "ipv4";
       }
diff --git a/ci-scripts/conf_files/cu.band7.tm1.25PRB.conf b/ci-scripts/conf_files/cu.band7.tm1.25PRB.conf
index 7e4dfc6de6..51f7277267 100644
--- a/ci-scripts/conf_files/cu.band7.tm1.25PRB.conf
+++ b/ci-scripts/conf_files/cu.band7.tm1.25PRB.conf
@@ -181,6 +181,7 @@ eNBs = (
       {
         ipv4       = "CI_MME_IP_ADDR";
         ipv6       = "192:168:30::17";
+        port       = 36412 ;
         active     = "yes";
         preference = "ipv4";
       }
diff --git a/ci-scripts/conf_files/cu.band7.tm1.50PRB.conf b/ci-scripts/conf_files/cu.band7.tm1.50PRB.conf
index b1c4774aba..9946713c3a 100644
--- a/ci-scripts/conf_files/cu.band7.tm1.50PRB.conf
+++ b/ci-scripts/conf_files/cu.band7.tm1.50PRB.conf
@@ -181,6 +181,7 @@ eNBs = (
       {
         ipv4       = "CI_MME_IP_ADDR";
         ipv6       = "192:168:30::17";
+        port       = 36412 ;
         active     = "yes";
         preference = "ipv4";
       }
diff --git a/ci-scripts/conf_files/enb.band13.tm1.25PRB.usrpb210.conf b/ci-scripts/conf_files/enb.band13.tm1.25PRB.usrpb210.conf
index 49926c3e60..0c247e9ef9 100644
--- a/ci-scripts/conf_files/enb.band13.tm1.25PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band13.tm1.25PRB.usrpb210.conf
@@ -175,6 +175,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band13.tm1.50PRB.emtc.conf b/ci-scripts/conf_files/enb.band13.tm1.50PRB.emtc.conf
index 673c506dfa..f560958e15 100644
--- a/ci-scripts/conf_files/enb.band13.tm1.50PRB.emtc.conf
+++ b/ci-scripts/conf_files/enb.band13.tm1.50PRB.emtc.conf
@@ -356,6 +356,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band17.tm1.25PRB.usrpb210.conf b/ci-scripts/conf_files/enb.band17.tm1.25PRB.usrpb210.conf
index cf508a1e95..ba81f832db 100644
--- a/ci-scripts/conf_files/enb.band17.tm1.25PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band17.tm1.25PRB.usrpb210.conf
@@ -177,6 +177,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band17.tm1.mbms.25PRB.usrpb210.conf b/ci-scripts/conf_files/enb.band17.tm1.mbms.25PRB.usrpb210.conf
index d26ab5d1b4..79bbd7ee6f 100644
--- a/ci-scripts/conf_files/enb.band17.tm1.mbms.25PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band17.tm1.mbms.25PRB.usrpb210.conf
@@ -178,6 +178,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band40.tm1.100PRB.FairScheduler.usrpb210.conf b/ci-scripts/conf_files/enb.band40.tm1.100PRB.FairScheduler.usrpb210.conf
index 55127e1c53..b5fd1255bb 100644
--- a/ci-scripts/conf_files/enb.band40.tm1.100PRB.FairScheduler.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band40.tm1.100PRB.FairScheduler.usrpb210.conf
@@ -136,6 +136,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band40.tm1.25PRB.FairScheduler.usrpb210.conf b/ci-scripts/conf_files/enb.band40.tm1.25PRB.FairScheduler.usrpb210.conf
index 88e4c88685..552dfd637b 100644
--- a/ci-scripts/conf_files/enb.band40.tm1.25PRB.FairScheduler.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band40.tm1.25PRB.FairScheduler.usrpb210.conf
@@ -136,6 +136,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band40.tm1.50PRB.FairScheduler.usrpb210.conf b/ci-scripts/conf_files/enb.band40.tm1.50PRB.FairScheduler.usrpb210.conf
index 5794310fad..d95d2b6ac1 100644
--- a/ci-scripts/conf_files/enb.band40.tm1.50PRB.FairScheduler.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band40.tm1.50PRB.FairScheduler.usrpb210.conf
@@ -136,6 +136,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band40.tm2.25PRB.FairScheduler.usrpb210.conf b/ci-scripts/conf_files/enb.band40.tm2.25PRB.FairScheduler.usrpb210.conf
index 5348c25c0e..e466a23ab0 100644
--- a/ci-scripts/conf_files/enb.band40.tm2.25PRB.FairScheduler.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band40.tm2.25PRB.FairScheduler.usrpb210.conf
@@ -136,6 +136,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band7.tm1.100PRB.usrpb210.conf b/ci-scripts/conf_files/enb.band7.tm1.100PRB.usrpb210.conf
index 7ea8839b8a..e3cdb033c9 100644
--- a/ci-scripts/conf_files/enb.band7.tm1.100PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band7.tm1.100PRB.usrpb210.conf
@@ -173,6 +173,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band7.tm1.25PRB.slave.usrpb210.conf b/ci-scripts/conf_files/enb.band7.tm1.25PRB.slave.usrpb210.conf
index 36f0fdf7b1..f95530b251 100644
--- a/ci-scripts/conf_files/enb.band7.tm1.25PRB.slave.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band7.tm1.25PRB.slave.usrpb210.conf
@@ -176,6 +176,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band7.tm1.25PRB.usrpb210.conf b/ci-scripts/conf_files/enb.band7.tm1.25PRB.usrpb210.conf
index b61201440b..eddb34a579 100644
--- a/ci-scripts/conf_files/enb.band7.tm1.25PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band7.tm1.25PRB.usrpb210.conf
@@ -176,6 +176,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band7.tm1.50PRB.usrpb210.conf b/ci-scripts/conf_files/enb.band7.tm1.50PRB.usrpb210.conf
index 8a2cedfd05..b5d7f35a76 100644
--- a/ci-scripts/conf_files/enb.band7.tm1.50PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band7.tm1.50PRB.usrpb210.conf
@@ -181,6 +181,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band7.tm1.fr1.25PRB.usrpb210.conf b/ci-scripts/conf_files/enb.band7.tm1.fr1.25PRB.usrpb210.conf
index b2d5801efc..19e4abdcb0 100755
--- a/ci-scripts/conf_files/enb.band7.tm1.fr1.25PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band7.tm1.fr1.25PRB.usrpb210.conf
@@ -183,6 +183,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.band7.tm2.25PRB.usrpb210.conf b/ci-scripts/conf_files/enb.band7.tm2.25PRB.usrpb210.conf
index 08dd300329..67cc5706ae 100644
--- a/ci-scripts/conf_files/enb.band7.tm2.25PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.band7.tm2.25PRB.usrpb210.conf
@@ -176,6 +176,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/enb.slave.band13.tm1.25PRB.usrpb210.conf b/ci-scripts/conf_files/enb.slave.band13.tm1.25PRB.usrpb210.conf
index 371a6b4610..1b5376644b 100644
--- a/ci-scripts/conf_files/enb.slave.band13.tm1.25PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/enb.slave.band13.tm1.25PRB.usrpb210.conf
@@ -175,6 +175,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/gnb.band78.tm1.106PRB.usrpn300.conf b/ci-scripts/conf_files/gnb.band78.tm1.106PRB.usrpn300.conf
index 6f081fa24f..aeba400cad 100644
--- a/ci-scripts/conf_files/gnb.band78.tm1.106PRB.usrpn300.conf
+++ b/ci-scripts/conf_files/gnb.band78.tm1.106PRB.usrpn300.conf
@@ -204,6 +204,7 @@ gNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "192.168.12.26";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/gnb.band78.tm1.fr1.106PRB.usrpb210.conf b/ci-scripts/conf_files/gnb.band78.tm1.fr1.106PRB.usrpb210.conf
index 179e3ba10d..0d9691966b 100755
--- a/ci-scripts/conf_files/gnb.band78.tm1.fr1.106PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/gnb.band78.tm1.fr1.106PRB.usrpb210.conf
@@ -201,6 +201,7 @@ gNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/lte-fdd-basic-sim.conf b/ci-scripts/conf_files/lte-fdd-basic-sim.conf
index 163047d7b9..a4d8e007dc 100644
--- a/ci-scripts/conf_files/lte-fdd-basic-sim.conf
+++ b/ci-scripts/conf_files/lte-fdd-basic-sim.conf
@@ -173,6 +173,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/lte-fdd-fembms-basic-sim.conf b/ci-scripts/conf_files/lte-fdd-fembms-basic-sim.conf
index bb49d68bb4..458ab7cf89 100644
--- a/ci-scripts/conf_files/lte-fdd-fembms-basic-sim.conf
+++ b/ci-scripts/conf_files/lte-fdd-fembms-basic-sim.conf
@@ -174,6 +174,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/lte-fdd-mbms-basic-sim.conf b/ci-scripts/conf_files/lte-fdd-mbms-basic-sim.conf
index 2e211d86b8..e80ff2b9cb 100644
--- a/ci-scripts/conf_files/lte-fdd-mbms-basic-sim.conf
+++ b/ci-scripts/conf_files/lte-fdd-mbms-basic-sim.conf
@@ -174,6 +174,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/lte-tdd-basic-sim.conf b/ci-scripts/conf_files/lte-tdd-basic-sim.conf
index ad7e9d9f86..f443a907f2 100644
--- a/ci-scripts/conf_files/lte-tdd-basic-sim.conf
+++ b/ci-scripts/conf_files/lte-tdd-basic-sim.conf
@@ -136,6 +136,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/rcc.band38.tm1.50PRB.multi.rru.conf b/ci-scripts/conf_files/rcc.band38.tm1.50PRB.multi.rru.conf
index b3899fdb6a..502e3c548a 100644
--- a/ci-scripts/conf_files/rcc.band38.tm1.50PRB.multi.rru.conf
+++ b/ci-scripts/conf_files/rcc.band38.tm1.50PRB.multi.rru.conf
@@ -141,6 +141,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/rcc.band40.tm1.100PRB.FairScheduler.usrpb210.conf b/ci-scripts/conf_files/rcc.band40.tm1.100PRB.FairScheduler.usrpb210.conf
index 0547590c29..2bf79a3d7e 100644
--- a/ci-scripts/conf_files/rcc.band40.tm1.100PRB.FairScheduler.usrpb210.conf
+++ b/ci-scripts/conf_files/rcc.band40.tm1.100PRB.FairScheduler.usrpb210.conf
@@ -139,6 +139,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/rcc.band40.tm1.25PRB.FairScheduler.usrpb210.conf b/ci-scripts/conf_files/rcc.band40.tm1.25PRB.FairScheduler.usrpb210.conf
index 3441690e6d..6b0e7de659 100644
--- a/ci-scripts/conf_files/rcc.band40.tm1.25PRB.FairScheduler.usrpb210.conf
+++ b/ci-scripts/conf_files/rcc.band40.tm1.25PRB.FairScheduler.usrpb210.conf
@@ -139,6 +139,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/rcc.band40.tm1.50PRB.FairScheduler.usrpb210.conf b/ci-scripts/conf_files/rcc.band40.tm1.50PRB.FairScheduler.usrpb210.conf
index 23709444bd..6b41d78506 100644
--- a/ci-scripts/conf_files/rcc.band40.tm1.50PRB.FairScheduler.usrpb210.conf
+++ b/ci-scripts/conf_files/rcc.band40.tm1.50PRB.FairScheduler.usrpb210.conf
@@ -139,6 +139,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/rcc.band7.tm1.if4p5.lo.100PRB.usrpb210.conf b/ci-scripts/conf_files/rcc.band7.tm1.if4p5.lo.100PRB.usrpb210.conf
index 33d00b8908..5df8f16f78 100644
--- a/ci-scripts/conf_files/rcc.band7.tm1.if4p5.lo.100PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/rcc.band7.tm1.if4p5.lo.100PRB.usrpb210.conf
@@ -176,6 +176,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/rcc.band7.tm1.if4p5.lo.25PRB.usrpb210.conf b/ci-scripts/conf_files/rcc.band7.tm1.if4p5.lo.25PRB.usrpb210.conf
index a939c66cba..ad753bb114 100644
--- a/ci-scripts/conf_files/rcc.band7.tm1.if4p5.lo.25PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/rcc.band7.tm1.if4p5.lo.25PRB.usrpb210.conf
@@ -176,6 +176,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/rcc.band7.tm1.if4p5.lo.50PRB.usrpb210.conf b/ci-scripts/conf_files/rcc.band7.tm1.if4p5.lo.50PRB.usrpb210.conf
index 473496defa..dbe3aff3dc 100644
--- a/ci-scripts/conf_files/rcc.band7.tm1.if4p5.lo.50PRB.usrpb210.conf
+++ b/ci-scripts/conf_files/rcc.band7.tm1.if4p5.lo.50PRB.usrpb210.conf
@@ -176,6 +176,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/rcc.band7.tm1.mbms-s1ap.if4p5.50PRB.lo.conf b/ci-scripts/conf_files/rcc.band7.tm1.mbms-s1ap.if4p5.50PRB.lo.conf
index bf2db71152..640b85930a 100644
--- a/ci-scripts/conf_files/rcc.band7.tm1.mbms-s1ap.if4p5.50PRB.lo.conf
+++ b/ci-scripts/conf_files/rcc.band7.tm1.mbms-s1ap.if4p5.50PRB.lo.conf
@@ -144,6 +144,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "192.168.15.130";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/rcc.band7.tm1.mbms.if4p5.50PRB.lo.conf b/ci-scripts/conf_files/rcc.band7.tm1.mbms.if4p5.50PRB.lo.conf
index 3bcd038d70..7fe682f29e 100644
--- a/ci-scripts/conf_files/rcc.band7.tm1.mbms.if4p5.50PRB.lo.conf
+++ b/ci-scripts/conf_files/rcc.band7.tm1.mbms.if4p5.50PRB.lo.conf
@@ -144,6 +144,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "127.0.0.3";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/ci-scripts/conf_files/rcc.band7.tm1.nfapi.conf b/ci-scripts/conf_files/rcc.band7.tm1.nfapi.conf
index ad113d0ffc..281f7433af 100644
--- a/ci-scripts/conf_files/rcc.band7.tm1.nfapi.conf
+++ b/ci-scripts/conf_files/rcc.band7.tm1.nfapi.conf
@@ -174,6 +174,7 @@ eNBs =
     ////////// MME parameters:
     mme_ip_address      = ( { ipv4       = "CI_MME_IP_ADDR";
                               ipv6       = "192:168:30::17";
+                              port       = 36412 ;
                               active     = "yes";
                               preference = "ipv4";
                             }
diff --git a/cmake_targets/tools/build_helper b/cmake_targets/tools/build_helper
index 7c50bc106a..f76eae7f28 100755
--- a/cmake_targets/tools/build_helper
+++ b/cmake_targets/tools/build_helper
@@ -42,12 +42,12 @@ KERNEL_MAJOR=$(uname -r | cut -d '.' -f2)
 
 #check if we run inside a container
 IS_CONTAINER=`egrep -c "docker|podman|kubepods" /proc/self/cgroup || true`
-#sudo is not needed inside a container
-if [ $IS_CONTAINER -eq 0 ]
+#sudo is not needed when we are root
+if [ "$UID" = 0 ]
 then
-  SUDO='sudo -S -E'
-else
   SUDO=''
+else
+  SUDO='sudo -S -E'
 fi
 
 ###############################
@@ -251,18 +251,13 @@ install_protobuf_from_source(){
     #wget https://github.com/google/protobuf/releases/download/v2.6.1/protobuf-2.6.1.tar.gz
     #tar -xzvf protobuf-2.6.1.tar.gz --owner $USER --group $USER --no-same-owner
     #cd protobuf-2.6.1/
-    
+
     if [ $IS_CONTAINER -eq 0 ]
     then
       rm -rf /tmp/protobuf-cpp-3.3.0.tar.gz* /tmp/protobuf-3.3.0
       wget --tries=3 --retry-connrefused https://github.com/google/protobuf/releases/download/v3.3.0/protobuf-cpp-3.3.0.tar.gz
-      tar -xzvf protobuf-cpp-3.3.0.tar.gz --owner $USER --group $(groups | cut -d" " -f1) --no-same-owner
+      tar -xzvf protobuf-cpp-3.3.0.tar.gz --owner $(id -u) --group $(id -g) --no-same-owner
       cd protobuf-3.3.0/
-      ./configure
-      echo "Compiling protobuf"
-      make -j`nproc`
-      $SUDO make install
-      $SUDO ldconfig
     else
       export LD_LIBRARY_PATH=/usr/local/lib #protoc needs to know where toclook for shared libs
       rm -rf /tmp/protobuf
@@ -270,11 +265,12 @@ install_protobuf_from_source(){
       cd /tmp/protobuf
       git submodule update --init --recursive
       ./autogen.sh
-      ./configure
-      make -j`nproc`
-      make install
-      ldconfig
     fi
+    ./configure
+    echo "Compiling protobuf"
+    make -j`nproc`
+    $SUDO make install
+    $SUDO ldconfig
     ) >& $protobuf_install_log
 }
 
diff --git a/openair2/COMMON/s1ap_messages_types.h b/openair2/COMMON/s1ap_messages_types.h
index befab4ebdf..f6b4f3c4e2 100644
--- a/openair2/COMMON/s1ap_messages_types.h
+++ b/openair2/COMMON/s1ap_messages_types.h
@@ -386,6 +386,7 @@ typedef struct s1ap_register_enb_req_s {
   uint8_t          nb_mme;
   /* List of MME to connect to */
   net_ip_address_t mme_ip_address[S1AP_MAX_NB_MME_IP_ADDRESS];
+  uint16_t         mme_port[S1AP_MAX_NB_MME_IP_ADDRESS];
   uint8_t          broadcast_plmn_num[S1AP_MAX_NB_MME_IP_ADDRESS];
   uint8_t          broadcast_plmn_index[S1AP_MAX_NB_MME_IP_ADDRESS][PLMN_LIST_MAX_SIZE];
 
diff --git a/openair2/ENB_APP/enb_config.c b/openair2/ENB_APP/enb_config.c
index cf8ba78a81..de77d783c7 100644
--- a/openair2/ENB_APP/enb_config.c
+++ b/openair2/ENB_APP/enb_config.c
@@ -2511,6 +2511,9 @@ int RCconfig_S1(
                 S1AP_REGISTER_ENB_REQ(msg_p).broadcast_plmn_num[l] = 0;
               }
 
+              /* set S1-mme port (sctp) */
+              S1AP_REGISTER_ENB_REQ(msg_p).mme_port[l] = *S1ParamList.paramarray[l][ENB_MME_PORT_IDX].u16ptr;
+
               AssertFatal(S1AP_REGISTER_ENB_REQ(msg_p).broadcast_plmn_num[l] <= S1AP_REGISTER_ENB_REQ(msg_p).num_plmn,
                           "List of broadcast PLMN to be sent to MME can not be longer than actual "
                           "PLMN list (max %d, but is %d)\n",
diff --git a/openair2/ENB_APP/enb_paramdef.h b/openair2/ENB_APP/enb_paramdef.h
index 24240e5ae1..de7e0bbdad 100644
--- a/openair2/ENB_APP/enb_paramdef.h
+++ b/openair2/ENB_APP/enb_paramdef.h
@@ -34,6 +34,7 @@
 #define ENB_PARAMDEF_H_
 #include "common/config/config_paramdesc.h"
 #include "RRC_paramsvalues.h"
+#include "s1ap_eNB_default_values.h"
 
 #define ENB_CONFIG_STRING_CC_NODE_FUNCTION  "node_function"
 #define ENB_CONFIG_STRING_CC_NODE_TIMING    "node_timing"
@@ -910,6 +911,7 @@ typedef struct srb1_params_s {
 
 #define ENB_CONFIG_STRING_MME_IPV4_ADDRESS              "ipv4"
 #define ENB_CONFIG_STRING_MME_IPV6_ADDRESS              "ipv6"
+#define ENB_CONFIG_STRING_MME_PORT                      "port"
 #define ENB_CONFIG_STRING_MME_IP_ADDRESS_ACTIVE         "active"
 #define ENB_CONFIG_STRING_MME_IP_ADDRESS_PREFERENCE     "preference"
 #define ENB_CONFIG_STRING_MME_BROADCAST_PLMN_INDEX      "broadcast_plmn_index"
@@ -924,14 +926,20 @@ typedef struct srb1_params_s {
   {ENB_CONFIG_STRING_MME_IPV6_ADDRESS,                   NULL,      0,         uptr:NULL,   defstrval:NULL,      TYPE_STRING,    0},    \
   {ENB_CONFIG_STRING_MME_IP_ADDRESS_ACTIVE,              NULL,      0,         uptr:NULL,   defstrval:NULL,      TYPE_STRING,    0},    \
   {ENB_CONFIG_STRING_MME_IP_ADDRESS_PREFERENCE,          NULL,      0,         uptr:NULL,   defstrval:NULL,      TYPE_STRING,    0},    \
-  {ENB_CONFIG_STRING_MME_BROADCAST_PLMN_INDEX,           NULL,      0,         uptr:NULL,   defintarrayval:NULL, TYPE_UINTARRAY, 6}     \
+  {ENB_CONFIG_STRING_MME_BROADCAST_PLMN_INDEX,           NULL,      0,         uptr:NULL,   defintarrayval:NULL, TYPE_UINTARRAY, 6},    \
+  {ENB_CONFIG_STRING_MME_PORT,                           NULL,      0,         u16ptr:NULL, defuintval:S1AP_PORT_NUMBER, TYPE_UINT16, 0},    \
 }
 
+
+
+
+
 #define ENB_MME_IPV4_ADDRESS_IDX          0
 #define ENB_MME_IPV6_ADDRESS_IDX          1
 #define ENB_MME_IP_ADDRESS_ACTIVE_IDX     2
 #define ENB_MME_IP_ADDRESS_PREFERENCE_IDX 3
 #define ENB_MME_BROADCAST_PLMN_INDEX      4
+#define ENB_MME_PORT_IDX                  5
 /*---------------------------------------------------------------------------------------------------------------------------------------*/
 
 /* X2 configuration parameters section name */
diff --git a/openair3/S1AP/s1ap_eNB.c b/openair3/S1AP/s1ap_eNB.c
index c703501847..2a153acaa2 100644
--- a/openair3/S1AP/s1ap_eNB.c
+++ b/openair3/S1AP/s1ap_eNB.c
@@ -89,6 +89,7 @@ uint32_t s1ap_generate_eNB_id(void) {
 
 static void s1ap_eNB_register_mme(s1ap_eNB_instance_t *instance_p,
                                   net_ip_address_t    *mme_ip_address,
+                                  uint16_t             mme_port,
                                   net_ip_address_t    *local_ip_addr,
                                   uint16_t             in_streams,
                                   uint16_t             out_streams,
@@ -102,7 +103,7 @@ static void s1ap_eNB_register_mme(s1ap_eNB_instance_t *instance_p,
   DevAssert(mme_ip_address != NULL);
   message_p = itti_alloc_new_message(TASK_S1AP, SCTP_NEW_ASSOCIATION_REQ);
   sctp_new_association_req_p = &message_p->ittiMsg.sctp_new_association_req;
-  sctp_new_association_req_p->port = S1AP_PORT_NUMBER;
+  sctp_new_association_req_p->port = mme_port;
   sctp_new_association_req_p->ppid = S1AP_SCTP_PPID;
   sctp_new_association_req_p->in_streams  = in_streams;
   sctp_new_association_req_p->out_streams = out_streams;
@@ -221,6 +222,7 @@ void s1ap_eNB_handle_register_eNB(instance_t instance, s1ap_register_enb_req_t *
   /* Trying to connect to provided list of MME ip address */
   for (index = 0; index < s1ap_register_eNB->nb_mme; index++) {
     net_ip_address_t *mme_ip = &s1ap_register_eNB->mme_ip_address[index];
+    uint16_t mme_port = s1ap_register_eNB->mme_port[index];
     struct s1ap_eNB_mme_data_s *mme = NULL;
     RB_FOREACH(mme, s1ap_mme_map, &new_instance->s1ap_mme_head) {
       /* Compare whether IPv4 and IPv6 information is already present, in which
@@ -235,6 +237,7 @@ void s1ap_eNB_handle_register_eNB(instance_t instance, s1ap_register_enb_req_t *
       continue;
     s1ap_eNB_register_mme(new_instance,
                           mme_ip,
+                          mme_port,
                           &s1ap_register_eNB->enb_ip_address,
                           s1ap_register_eNB->sctp_in_streams,
                           s1ap_register_eNB->sctp_out_streams,