diff --git a/meta-openembedded/meta-networking/recipes-connectivity/dhcp/dhcp-relay_4.4.2.bb b/meta-openembedded/meta-networking/recipes-connectivity/dhcp/dhcp-relay_4.4.2.bb
new file mode 100644
index 0000000..b178180
--- /dev/null
+++ b/meta-openembedded/meta-networking/recipes-connectivity/dhcp/dhcp-relay_4.4.2.bb
@@ -0,0 +1,72 @@
+SECTION = "console/network"
+SUMMARY = "Internet Software Consortium DHCP Relay Agent"
+DESCRIPTION = "A DHCP relay agent passes DHCP requests from one \
+LAN to another, so that a DHCP server is not needed on every LAN."
+
+HOMEPAGE = "http://www.isc.org/"
+
+LICENSE = "ISC"
+LIC_FILES_CHKSUM = "file://LICENSE;beginline=4;md5=004a4db50a1e20972e924a8618747c01"
+
+DEPENDS = "openssl libcap zlib"
+
+SRC_URI = "https://ftp.isc.org/isc/dhcp/${PV}/dhcp-${PV}.tar.gz \
+           file://default-relay \
+           file://init-relay \
+           file://dhcrelay.service \
+           file://0001-Makefile.am-only-build-dhcrelay.patch \
+           "
+
+SRC_URI[md5sum] = "2afdaf8498dc1edaf3012efdd589b3e1"
+SRC_URI[sha256sum] = "1a7ccd64a16e5e68f7b5e0f527fd07240a2892ea53fe245620f4f5f607004521"
+
+UPSTREAM_CHECK_URI = "http://ftp.isc.org/isc/dhcp/"
+UPSTREAM_CHECK_REGEX = "(?P<pver>\d+\.\d+\.(\d+?))/"
+
+S = "${WORKDIR}/dhcp-${PV}"
+
+inherit autotools-brokensep systemd
+
+SYSTEMD_SERVICE_${PN} = "dhcrelay.service"
+SYSTEMD_AUTO_ENABLE_${PN} = "disable"
+
+CFLAGS += "-D_GNU_SOURCE -fcommon"
+LDFLAGS_append = " -pthread"
+
+EXTRA_OECONF = "--enable-paranoia \
+                --disable-static \
+                --enable-libtool \
+                --with-randomdev=/dev/random \
+               "
+EXTRA_OEMAKE += "LIBTOOL='${S}/${HOST_SYS}-libtool'"
+
+# Enable shared libs per dhcp README
+do_configure_prepend () {
+    cp configure.ac+lt configure.ac
+}
+do_compile_prepend() {
+    rm -rf ${S}/bind/bind-9.11.14/
+    tar xf ${S}/bind/bind.tar.gz -C ${S}/bind
+    install -m 0755 ${STAGING_DATADIR_NATIVE}/gnu-config/config.guess ${S}/bind/bind-9.11.14/
+    install -m 0755 ${STAGING_DATADIR_NATIVE}/gnu-config/config.sub ${S}/bind/bind-9.11.14/
+    cp -fpR ${S}/m4/*.m4 ${S}/bind/bind-9.11.14/libtool.m4/
+    rm -rf ${S}/bind/bind-9.11.14/libtool
+    install -m 0755 ${S}/${HOST_SYS}-libtool ${S}/bind/bind-9.11.14/
+}
+
+do_install_append () {
+    install -d ${D}${sysconfdir}/default
+    install -m 0644 ${WORKDIR}/default-relay ${D}${sysconfdir}/default/dhcp-relay
+
+    if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then
+        install -d ${D}${systemd_unitdir}/system
+        install -m 0644 ${WORKDIR}/dhcrelay.service ${D}${systemd_unitdir}/system
+        sed -i -e 's,@SBINDIR@,${sbindir},g' ${D}${systemd_unitdir}/system/dhcrelay.service
+        sed -i -e 's,@SYSCONFDIR@,${sysconfdir},g' ${D}${systemd_unitdir}/system/dhcrelay.service
+    else
+        install -d ${D}${sysconfdir}/init.d
+        install -m 0755 ${WORKDIR}/init-relay ${D}${sysconfdir}/init.d/dhcp-relay
+    fi
+}
+
+PARALLEL_MAKE = ""
diff --git a/meta-openembedded/meta-networking/recipes-connectivity/dhcp/files/0001-Makefile.am-only-build-dhcrelay.patch b/meta-openembedded/meta-networking/recipes-connectivity/dhcp/files/0001-Makefile.am-only-build-dhcrelay.patch
new file mode 100644
index 0000000..fed85d2
--- /dev/null
+++ b/meta-openembedded/meta-networking/recipes-connectivity/dhcp/files/0001-Makefile.am-only-build-dhcrelay.patch
@@ -0,0 +1,30 @@
+From 17cc080e58894644dd18664ac6f3451096d5f065 Mon Sep 17 00:00:00 2001
+From: Yi Zhao <yi.zhao@windriver.com>
+Date: Thu, 13 May 2021 15:23:16 +0800
+Subject: [PATCH] Makefile.am: only build dhcrelay
+
+Drop client and server build as we don't need them.
+
+Upstream-Status: Inappropriate [embedded specific]
+
+Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
+---
+ Makefile.am | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile.am b/Makefile.am
+index ed692a5..34f9772 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -38,7 +38,7 @@ endif
+ 
+ # Use an autoconf substitution vs an automake conditional here
+ # to fool automake when the bind directory does not exist.
+-SUBDIRS = @BINDSUBDIR@ includes tests common omapip client dhcpctl relay server
++SUBDIRS = @BINDSUBDIR@ includes common omapip relay
+ 
+ DIST_SUBDIRS = $(SUBDIRS) keama
+ 
+-- 
+2.17.1
+
diff --git a/meta-openembedded/meta-networking/recipes-connectivity/dhcp/files/default-relay b/meta-openembedded/meta-networking/recipes-connectivity/dhcp/files/default-relay
new file mode 100644
index 0000000..7961f01
--- /dev/null
+++ b/meta-openembedded/meta-networking/recipes-connectivity/dhcp/files/default-relay
@@ -0,0 +1,12 @@
+# Defaults for dhcp-relay initscript
+# sourced by /etc/init.d/dhcp-relay
+
+# What servers should the DHCP relay forward requests to?
+# e.g: SERVERS="192.168.0.1"
+SERVERS=""
+
+# On what interfaces should the DHCP relay (dhrelay) serve DHCP requests?
+INTERFACES=""
+
+# Additional options that are passed to the DHCP relay daemon?
+OPTIONS=""
diff --git a/meta-openembedded/meta-networking/recipes-connectivity/dhcp/files/dhcrelay.service b/meta-openembedded/meta-networking/recipes-connectivity/dhcp/files/dhcrelay.service
new file mode 100644
index 0000000..15ff927
--- /dev/null
+++ b/meta-openembedded/meta-networking/recipes-connectivity/dhcp/files/dhcrelay.service
@@ -0,0 +1,10 @@
+[Unit]
+Description=DHCP Relay Agent Daemon
+After=network.target
+
+[Service]
+EnvironmentFile=@SYSCONFDIR@/default/dhcp-relay
+ExecStart=@SBINDIR@/dhcrelay -d --no-pid -q $SERVERS
+
+[Install]
+WantedBy=multi-user.target
diff --git a/meta-openembedded/meta-networking/recipes-connectivity/dhcp/files/init-relay b/meta-openembedded/meta-networking/recipes-connectivity/dhcp/files/init-relay
new file mode 100644
index 0000000..019a7e8
--- /dev/null
+++ b/meta-openembedded/meta-networking/recipes-connectivity/dhcp/files/init-relay
@@ -0,0 +1,44 @@
+#!/bin/sh
+#
+# $Id: dhcp3-relay,v 1.1 2004/04/16 15:41:08 ml Exp $
+#
+
+# It is not safe to start if we don't have a default configuration...
+if [ ! -f /etc/default/dhcp-relay ]; then
+	echo "/etc/default/dhcp-relay does not exist! - Aborting..."
+	echo "create this file to fix the problem."
+	exit 1
+fi
+
+# Read init script configuration (interfaces the daemon should listen on
+# and the DHCP server we should forward requests to.)
+. /etc/default/dhcp-relay
+
+# Build command line for interfaces (will be passed to dhrelay below.)
+IFCMD=""
+if test "$INTERFACES" != ""; then
+	for I in $INTERFACES; do
+		IFCMD=${IFCMD}"-i "${I}" "
+	done
+fi
+
+DHCRELAYPID=/var/run/dhcrelay.pid
+
+case "$1" in
+	start)
+		start-stop-daemon -S -x /usr/sbin/dhcrelay -- -q $OPTIONS $IFCMD $SERVERS
+		;;
+	stop)
+		start-stop-daemon -K -x /usr/sbin/dhcrelay
+		;;
+	restart | force-reload)
+		$0 stop
+		sleep 2
+		$0 start
+		;;
+	*)
+		echo "Usage: /etc/init.d/dhcp-relay {start|stop|restart|force-reload}"
+		exit 1 
+esac
+
+exit 0
diff --git a/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/files/0003-pyiec61850-don-t-break-CMAKE_INSTALL_PATH-by-trying-.patch b/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/files/0001-pyiec61850-don-t-break-CMAKE_INSTALL_PATH-by-trying-.patch
similarity index 95%
rename from meta-openembedded/meta-networking/recipes-connectivity/libiec61850/files/0003-pyiec61850-don-t-break-CMAKE_INSTALL_PATH-by-trying-.patch
rename to meta-openembedded/meta-networking/recipes-connectivity/libiec61850/files/0001-pyiec61850-don-t-break-CMAKE_INSTALL_PATH-by-trying-.patch
index 6556761..2168a07 100644
--- a/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/files/0003-pyiec61850-don-t-break-CMAKE_INSTALL_PATH-by-trying-.patch
+++ b/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/files/0001-pyiec61850-don-t-break-CMAKE_INSTALL_PATH-by-trying-.patch
@@ -1,4 +1,4 @@
-From 89f326a427c7ad13c115e2d3f2ac27807aa5a795 Mon Sep 17 00:00:00 2001
+From d4ddfc7a350011b7944ed8d6bca80f164dfd1387 Mon Sep 17 00:00:00 2001
 From: Romain Naour <romain.naour@smile.fr>
 Date: Fri, 10 Jul 2020 17:08:34 +0200
 Subject: [PATCH] pyiec61850: don't break CMAKE_INSTALL_PATH by trying to find
@@ -33,5 +33,5 @@
  
  add_test(test_pyiec61850 ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/test_pyiec61850.py)
 -- 
-2.21.3
+2.31.1
 
diff --git a/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/files/0001-use-poll.h-instead-of-sys-poll.h.patch b/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/files/0001-use-poll.h-instead-of-sys-poll.h.patch
deleted file mode 100644
index a04473d..0000000
--- a/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/files/0001-use-poll.h-instead-of-sys-poll.h.patch
+++ /dev/null
@@ -1,33 +0,0 @@
-From 4cad505fc98240eb66eaabfae61a9694f8158dda Mon Sep 17 00:00:00 2001
-From: Romain Naour <romain.naour@smile.fr>
-Date: Tue, 7 Apr 2020 20:58:37 +0200
-Subject: [PATCH] use <poll.h> instead of <sys/poll.h>
-
-The manpage of poll(2) states that the prototype of poll is defined
-in <poll.h>. Use that header file instead of <sys/poll.h> to allow
-compilation against musl-libc.
-
-Upstream status: Pending
-https://github.com/mz-automation/libiec61850/pull/228
-
-Signed-off-by: Romain Naour <romain.naour@smile.fr>
----
- hal/ethernet/linux/ethernet_linux.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/hal/ethernet/linux/ethernet_linux.c b/hal/ethernet/linux/ethernet_linux.c
-index c3ab2e2..9aa5c28 100644
---- a/hal/ethernet/linux/ethernet_linux.c
-+++ b/hal/ethernet/linux/ethernet_linux.c
-@@ -23,7 +23,7 @@
- 
- #include <sys/socket.h>
- #include <sys/ioctl.h>
--#include <sys/poll.h>
-+#include <poll.h>
- #include <linux/if_packet.h>
- #include <linux/if_ether.h>
- #include <linux/if_arp.h>
--- 
-2.21.1
-
diff --git a/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/files/0002-serial_port_linux-Add-missing-include-sys-time.h.patch b/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/files/0002-serial_port_linux-Add-missing-include-sys-time.h.patch
deleted file mode 100644
index e1b8ca1..0000000
--- a/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/files/0002-serial_port_linux-Add-missing-include-sys-time.h.patch
+++ /dev/null
@@ -1,32 +0,0 @@
-From 661405eb6066b67dfe51d5ff9635e29f86bdd238 Mon Sep 17 00:00:00 2001
-From: Romain Naour <romain.naour@smile.fr>
-Date: Tue, 7 Apr 2020 21:02:54 +0200
-Subject: [PATCH] serial_port_linux: Add missing include sys/time.h
-
-POSIX says `struct timeval` is defined if <sys/time.h> is included.
-
-Adding this header allow to build against musl-libc.
-
-Upstream status: Pending
-https://github.com/mz-automation/libiec61850/pull/228
-
-Signed-off-by: Romain Naour <romain.naour@smile.fr>
----
- hal/serial/linux/serial_port_linux.c | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/hal/serial/linux/serial_port_linux.c b/hal/serial/linux/serial_port_linux.c
-index e6308c0..15e5794 100644
---- a/hal/serial/linux/serial_port_linux.c
-+++ b/hal/serial/linux/serial_port_linux.c
-@@ -29,6 +29,7 @@
- #include <termios.h>
- #include <fcntl.h>
- #include <unistd.h>
-+#include <sys/time.h>
- 
- #include "hal_serial.h"
- #include "hal_time.h"
--- 
-2.21.1
-
diff --git a/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/libiec61850_1.4.2.1.bb b/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/libiec61850_1.5.0.bb
similarity index 77%
rename from meta-openembedded/meta-networking/recipes-connectivity/libiec61850/libiec61850_1.4.2.1.bb
rename to meta-openembedded/meta-networking/recipes-connectivity/libiec61850/libiec61850_1.5.0.bb
index 18cb0cd..18e2992 100644
--- a/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/libiec61850_1.4.2.1.bb
+++ b/meta-openembedded/meta-networking/recipes-connectivity/libiec61850/libiec61850_1.5.0.bb
@@ -13,12 +13,10 @@
 LICENSE = "GPLv3"
 LIC_FILES_CHKSUM = "file://COPYING;md5=d32239bcb673463ab874e80d47fae504"
 DEPENDS = "swig-native python3"
-SRCREV = "d798814fb463115a835da597535a625b68a39cff"
+SRCREV = "fcefc746fea286aeaa40d2f62240216da81c85e5"
 
-SRC_URI = "git://github.com/mz-automation/${BPN}.git;branch=v1.4 \
-           file://0001-use-poll.h-instead-of-sys-poll.h.patch \
-           file://0002-serial_port_linux-Add-missing-include-sys-time.h.patch \
-           file://0003-pyiec61850-don-t-break-CMAKE_INSTALL_PATH-by-trying-.patch \
+SRC_URI = "git://github.com/mz-automation/${BPN}.git;branch=v1.5 \
+           file://0001-pyiec61850-don-t-break-CMAKE_INSTALL_PATH-by-trying-.patch \
 "
 
 S = "${WORKDIR}/git"
diff --git a/meta-openembedded/meta-networking/recipes-connectivity/restinio/restinio_0.6.13.bb b/meta-openembedded/meta-networking/recipes-connectivity/restinio/restinio_0.6.13.bb
new file mode 100644
index 0000000..e356796
--- /dev/null
+++ b/meta-openembedded/meta-networking/recipes-connectivity/restinio/restinio_0.6.13.bb
@@ -0,0 +1,31 @@
+SUMMARY = "Header-only C++14 library that gives you an embedded HTTP server"
+DESCRIPTION = "Cross-platform, efficient, customizable, and robust \
+               asynchronous HTTP/WebSocket server C++14 library with the \
+               right balance between performance and ease of use"
+AUTHOR = "Stefan Wiehler <stefan.wiehler@missinglinkelectronics.com>"
+HOMEPAGE = "https://stiffstream.com/en/products/restinio.html"
+SECTION = "libs"
+LICENSE = "BSD-3-Clause"
+LIC_FILES_CHKSUM = "file://../LICENSE;md5=f399b62ce0a152525d1589a5a40c0ff6"
+DEPENDS = "asio fmt http-parser"
+
+SRC_URI = "https://github.com/Stiffstream/restinio/releases/download/v.${PV}/restinio-${PV}.tar.bz2"
+SRC_URI[md5sum] = "37a4310e98912030a74bdd4ed789f33c"
+SRC_URI[sha256sum] = "b35d696e6fafd4563ca708fcecf9d0cf6705c846d417b5000f5252e0188848e7"
+
+S = "${WORKDIR}/${PN}-${PV}/dev"
+
+inherit cmake
+
+EXTRA_OECMAKE += "\
+                  -DRESTINIO_TEST=OFF \
+                  -DRESTINIO_SAMPLE=OFF \
+                  -DRESTINIO_BENCH=OFF \
+                  -DRESTINIO_FIND_DEPS=ON \
+                  -DRESTINIO_ALLOW_SOBJECTIZER=OFF \
+                  -DRESTINIO_USE_EXTERNAL_HTTP_PARSER=ON \
+                  "
+
+# Header-only library
+RDEPENDS_${PN}-dev = ""
+RRECOMMENDS_${PN}-dbg = "${PN}-dev (= ${EXTENDPKGV})"