diff --git a/plugins/check_snmp_boostedge.pl b/plugins/check_snmp_boostedge.pl
index b46b00a..e005d35 100755
--- a/plugins/check_snmp_boostedge.pl
+++ b/plugins/check_snmp_boostedge.pl
@@ -247,6 +247,7 @@ sub check_options {
         verb("SNMPv3 AuthNoPriv login : $o_login, $o_authproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
@@ -257,6 +258,7 @@ sub check_options {
         verb("SNMPv3 AuthPriv login : $o_login, $o_authproto, $o_privproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
diff --git a/plugins/check_snmp_css.pl b/plugins/check_snmp_css.pl
index 22b2f2d..cff09b0 100755
--- a/plugins/check_snmp_css.pl
+++ b/plugins/check_snmp_css.pl
@@ -326,6 +326,7 @@ sub check_options {
         verb("SNMPv3 AuthNoPriv login : $o_login, $o_authproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
@@ -336,6 +337,7 @@ sub check_options {
         verb("SNMPv3 AuthPriv login : $o_login, $o_authproto, $o_privproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
diff --git a/plugins/check_snmp_css_main.pl b/plugins/check_snmp_css_main.pl
index 3b64d67..608f682 100755
--- a/plugins/check_snmp_css_main.pl
+++ b/plugins/check_snmp_css_main.pl
@@ -205,6 +205,7 @@ sub check_options {
         verb("SNMPv3 AuthNoPriv login : $o_login, $o_authproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
@@ -215,6 +216,7 @@ sub check_options {
         verb("SNMPv3 AuthPriv login : $o_login, $o_authproto, $o_privproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
diff --git a/plugins/check_snmp_env.pl b/plugins/check_snmp_env.pl
index bf4d2ee..8f83091 100755
--- a/plugins/check_snmp_env.pl
+++ b/plugins/check_snmp_env.pl
@@ -383,6 +383,7 @@ sub check_options {
         verb("SNMPv3 AuthNoPriv login : $o_login, $o_authproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
@@ -393,6 +394,7 @@ sub check_options {
         verb("SNMPv3 AuthPriv login : $o_login, $o_authproto, $o_privproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
diff --git a/plugins/check_snmp_linkproof_nhr.pl b/plugins/check_snmp_linkproof_nhr.pl
index 36433ee..0e67954 100755
--- a/plugins/check_snmp_linkproof_nhr.pl
+++ b/plugins/check_snmp_linkproof_nhr.pl
@@ -210,6 +210,7 @@ sub check_options {
         verb("SNMPv3 AuthNoPriv login : $o_login, $o_authproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
@@ -220,6 +221,7 @@ sub check_options {
         verb("SNMPv3 AuthPriv login : $o_login, $o_authproto, $o_privproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
diff --git a/plugins/check_snmp_load.pl b/plugins/check_snmp_load.pl
index e8efe1a..af35174 100755
--- a/plugins/check_snmp_load.pl
+++ b/plugins/check_snmp_load.pl
@@ -390,6 +390,7 @@ sub is_legacy_snmp_version {
         verb("SNMPv3 AuthNoPriv login : $o_login, $o_authproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
@@ -401,6 +402,7 @@ sub is_legacy_snmp_version {
         verb("SNMPv3 AuthPriv login : $o_login, $o_authproto, $o_privproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
diff --git a/plugins/check_snmp_nsbox.pl b/plugins/check_snmp_nsbox.pl
index b177614..3ad3fa8 100755
--- a/plugins/check_snmp_nsbox.pl
+++ b/plugins/check_snmp_nsbox.pl
@@ -265,6 +265,7 @@ sub check_options {
         verb("SNMPv3 AuthNoPriv login : $o_login, $o_authproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
@@ -275,6 +276,7 @@ sub check_options {
         verb("SNMPv3 AuthPriv login : $o_login, $o_authproto, $o_privproto");
         ($session, $error) = Net::SNMP->session(
             -hostname     => $o_host,
+            -port         => $o_port,
             -version      => '3',
             -username     => $o_login,
             -authpassword => $o_passwd,
diff --git a/plugins/check_snmp_win.pl b/plugins/check_snmp_win.pl
index 57c6014..f90bf09 100755
--- a/plugins/check_snmp_win.pl
+++ b/plugins/check_snmp_win.pl
@@ -247,6 +247,7 @@ sub check_options {
     verb("SNMPv3 login");
     ($session, $error) = Net::SNMP->session(
         -hostname     => $o_host,
+        -port         => $o_port,
         -version      => '3',
         -username     => $o_login,
         -authpassword => $o_passwd,