diff --git a/CHANGELOG.md b/CHANGELOG.md
index bb418b1..c9c7e47 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,6 +25,15 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - in case of vulnerabilities.
 -->
 
+## [0.4.3] - 2022-02-06
+### Added
+- `bytes_sent`, `bytes_recvd` and `uptime` have been added to `getPeers`
+- Clearer logging when connections are rejected due to incompatible peer versions
+
+### Fixed
+- Latency-based parent selection tiebreak is now reliable on platforms even with low timer resolution
+- Tree distance calculation offsets have been corrected
+
 ## [0.4.2] - 2021-11-03
 ### Fixed
 - Reverted a dependency update which resulted in problems building with Go 1.16 and running on Windows
diff --git a/appveyor.yml b/appveyor.yml
index 903014e..27ff7fb 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -9,8 +9,11 @@ environment:
   CHERE_INVOKING: enabled_from_arguments
 
 build_script:
-- cmd: >-
-    cd %APPVEYOR_BUILD_FOLDER%
+- cmd: cd %APPVEYOR_BUILD_FOLDER%
+- curl -o C:\projects\golang.zip https://dl.google.com/go/go1.17.5.windows-amd64.zip
+- 7z x C:\projects\golang.zip -oC:\projects\
+- cmd: set PATH=C:\projects\go\bin;%PATH%
+- cmd: set GOROOT=C:\projects\go
 - c:\msys64\usr\bin\bash -lc "./contrib/msi/build-msi.sh x64"
 - c:\msys64\usr\bin\bash -lc "./contrib/msi/build-msi.sh x86"
 
diff --git a/build b/build
index 583bf61..c721443 100755
--- a/build
+++ b/build
@@ -9,13 +9,11 @@ PKGVER=${PKGVER:-$(sh contrib/semver/version.sh --bare)}
 LDFLAGS="-X $PKGSRC.buildName=$PKGNAME -X $PKGSRC.buildVersion=$PKGVER"
 ARGS="-v"
 
-while getopts "uaitc:l:dro:p" option
+while getopts "utc:l:dro:p" option
 do
   case "$option"
   in
   u) UPX=true;;
-  i) IOS=true;;
-  a) ANDROID=true;;
   t) TABLES=true;;
   c) GCFLAGS="$GCFLAGS $OPTARG";;
   l) LDFLAGS="$LDFLAGS $OPTARG";;
@@ -30,25 +28,11 @@ if [ -z $TABLES ] && [ -z $DEBUG ]; then
   LDFLAGS="$LDFLAGS -s -w"
 fi
 
-if [ $IOS ]; then
-  echo "Building framework for iOS"
-  go get golang.org/x/mobile/bind
-  gomobile bind -target ios -tags mobile -o Yggdrasil.framework -ldflags="$LDFLAGS $STRIP" -gcflags="$GCFLAGS" \
-    github.com/yggdrasil-network/yggdrasil-extras/src/mobile \
-    github.com/yggdrasil-network/yggdrasil-go/src/config
-elif [ $ANDROID ]; then
-  echo "Building aar for Android"
-  go get golang.org/x/mobile/bind
-  gomobile bind -target android -tags mobile -o yggdrasil.aar -ldflags="$LDFLAGS $STRIP" -gcflags="$GCFLAGS" \
-    github.com/yggdrasil-network/yggdrasil-extras/src/mobile \
-    github.com/yggdrasil-network/yggdrasil-go/src/config
-else
-  for CMD in yggdrasil yggdrasilctl ; do
-    echo "Building: $CMD"
-    go build $ARGS -ldflags="$LDFLAGS" -gcflags="$GCFLAGS" ./cmd/$CMD
+for CMD in yggdrasil yggdrasilctl ; do
+  echo "Building: $CMD"
+  go build $ARGS -ldflags="$LDFLAGS" -gcflags="$GCFLAGS" ./cmd/$CMD
 
-    if [ $UPX ]; then
-      upx --brute $CMD
-    fi
-  done
-fi
+  if [ $UPX ]; then
+    upx --brute $CMD
+  fi
+done
diff --git a/contrib/macos/create-pkg.sh b/contrib/macos/create-pkg.sh
index 919c45e..773f01e 100755
--- a/contrib/macos/create-pkg.sh
+++ b/contrib/macos/create-pkg.sh
@@ -79,6 +79,7 @@ PKGNAME=$(sh contrib/semver/name.sh)
 PKGVERSION=$(sh contrib/semver/version.sh --bare)
 PKGARCH=${PKGARCH-amd64}
 PAYLOADSIZE=$(( $(wc -c pkgbuild/flat/base.pkg/Payload | awk '{ print $1 }') / 1024 ))
+[ "$PKGARCH" = "amd64" ] && PKGHOSTARCH="x86_64" || PKGHOSTARCH=${PKGARCH}
 
 # Create the PackageInfo file
 cat > pkgbuild/flat/base.pkg/PackageInfo << EOF
@@ -98,7 +99,7 @@ cat > pkgbuild/flat/Distribution << EOF
 <?xml version="1.0" encoding="utf-8"?>
 <installer-script minSpecVersion="1.000000" authoringTool="com.apple.PackageMaker" authoringToolVersion="3.0.3" authoringToolBuild="174">
     <title>Yggdrasil (${PKGNAME}-${PKGVERSION})</title>
-    <options customize="never" allow-external-scripts="no"/>
+    <options customize="never" allow-external-scripts="no" hostArchitectures="${PKGHOSTARCH}" />
     <domains enable_anywhere="true"/>
     <installation-check script="pm_install_check();"/>
     <script>
diff --git a/contrib/mobile/build b/contrib/mobile/build
new file mode 100755
index 0000000..3c7b1d1
--- /dev/null
+++ b/contrib/mobile/build
@@ -0,0 +1,52 @@
+#!/bin/sh
+
+set -ef
+
+[ ! -d contrib/mobile ] && (echo "Must run ./contrib/mobile/build [-i] [-a] from the repository top level folder"; exit 1)
+
+PKGSRC=${PKGSRC:-github.com/yggdrasil-network/yggdrasil-go/src/version}
+PKGNAME=${PKGNAME:-$(sh contrib/semver/name.sh)}
+PKGVER=${PKGVER:-$(sh contrib/semver/version.sh --bare)}
+
+LDFLAGS="-X $PKGSRC.buildName=$PKGNAME -X $PKGSRC.buildVersion=$PKGVER"
+ARGS="-v"
+
+while getopts "aitc:l:d" option
+do
+  case "$option"
+  in
+  i) IOS=true;;
+  a) ANDROID=true;;
+  t) TABLES=true;;
+  c) GCFLAGS="$GCFLAGS $OPTARG";;
+  l) LDFLAGS="$LDFLAGS $OPTARG";;
+  d) ARGS="$ARGS -tags debug" DEBUG=true;;
+  esac
+done
+
+if [ -z $TABLES ] && [ -z $DEBUG ]; then
+  LDFLAGS="$LDFLAGS -s -w"
+fi
+
+if [ ! $IOS ] && [ ! $ANDROID ]; then 
+  echo "Must specify -a (Android), -i (iOS) or both"
+  exit 1
+fi
+
+if [ $IOS ]; then
+  echo "Building framework for iOS"
+  go get golang.org/x/mobile/bind
+  gomobile bind \
+    -target ios -tags mobile -o Yggdrasil.xcframework \
+    -ldflags="$LDFLAGS $STRIP" -gcflags="$GCFLAGS" \
+    ./contrib/mobile ./src/config;
+fi
+
+if [ $ANDROID ]; then
+  echo "Building aar for Android"
+  go get golang.org/x/mobile/bind
+  gomobile bind \
+    -target android -tags mobile -o yggdrasil.aar \
+    -ldflags="$LDFLAGS $STRIP" -gcflags="$GCFLAGS" \
+    ./contrib/mobile ./src/config;
+fi
diff --git a/contrib/mobile/mobile.go b/contrib/mobile/mobile.go
new file mode 100644
index 0000000..ba7cfdf
--- /dev/null
+++ b/contrib/mobile/mobile.go
@@ -0,0 +1,178 @@
+package mobile
+
+import (
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"net"
+
+	"github.com/gologme/log"
+
+	"github.com/yggdrasil-network/yggdrasil-go/src/address"
+	"github.com/yggdrasil-network/yggdrasil-go/src/config"
+	"github.com/yggdrasil-network/yggdrasil-go/src/core"
+	"github.com/yggdrasil-network/yggdrasil-go/src/defaults"
+	"github.com/yggdrasil-network/yggdrasil-go/src/ipv6rwc"
+	"github.com/yggdrasil-network/yggdrasil-go/src/multicast"
+	"github.com/yggdrasil-network/yggdrasil-go/src/version"
+
+	_ "golang.org/x/mobile/bind"
+)
+
+// Yggdrasil mobile package is meant to "plug the gap" for mobile support, as
+// Gomobile will not create headers for Swift/Obj-C etc if they have complex
+// (non-native) types. Therefore for iOS we will expose some nice simple
+// functions. Note that in the case of iOS we handle reading/writing to/from TUN
+// in Swift therefore we use the "dummy" TUN interface instead.
+type Yggdrasil struct {
+	core      core.Core
+	iprwc     *ipv6rwc.ReadWriteCloser
+	config    *config.NodeConfig
+	multicast multicast.Multicast
+	log       MobileLogger
+}
+
+// StartAutoconfigure starts a node with a randomly generated config
+func (m *Yggdrasil) StartAutoconfigure() error {
+	return m.StartJSON([]byte("{}"))
+}
+
+// StartJSON starts a node with the given JSON config. You can get JSON config
+// (rather than HJSON) by using the GenerateConfigJSON() function
+func (m *Yggdrasil) StartJSON(configjson []byte) error {
+	logger := log.New(m.log, "", 0)
+	logger.EnableLevel("error")
+	logger.EnableLevel("warn")
+	logger.EnableLevel("info")
+	m.config = defaults.GenerateConfig()
+	if err := json.Unmarshal(configjson, &m.config); err != nil {
+		return err
+	}
+	m.config.IfName = "none"
+	if err := m.core.Start(m.config, logger); err != nil {
+		logger.Errorln("An error occured starting Yggdrasil:", err)
+		return err
+	}
+	mtu := m.config.IfMTU
+	m.iprwc = ipv6rwc.NewReadWriteCloser(&m.core)
+	if m.iprwc.MaxMTU() < mtu {
+		mtu = m.iprwc.MaxMTU()
+	}
+	m.iprwc.SetMTU(mtu)
+	if len(m.config.MulticastInterfaces) > 0 {
+		if err := m.multicast.Init(&m.core, m.config, logger, nil); err != nil {
+			logger.Errorln("An error occurred initialising multicast:", err)
+			return err
+		}
+		if err := m.multicast.Start(); err != nil {
+			logger.Errorln("An error occurred starting multicast:", err)
+			return err
+		}
+	}
+	return nil
+}
+
+// Send sends a packet to Yggdrasil. It should be a fully formed
+// IPv6 packet
+func (m *Yggdrasil) Send(p []byte) error {
+	if m.iprwc == nil {
+		return nil
+	}
+	_, _ = m.iprwc.Write(p)
+	return nil
+}
+
+// Recv waits for and reads a packet coming from Yggdrasil. It
+// will be a fully formed IPv6 packet
+func (m *Yggdrasil) Recv() ([]byte, error) {
+	if m.iprwc == nil {
+		return nil, nil
+	}
+	var buf [65535]byte
+	n, _ := m.iprwc.Read(buf[:])
+	return buf[:n], nil
+}
+
+// Stop the mobile Yggdrasil instance
+func (m *Yggdrasil) Stop() error {
+	logger := log.New(m.log, "", 0)
+	logger.EnableLevel("info")
+	logger.Infof("Stop the mobile Yggdrasil instance %s", "")
+	if err := m.multicast.Stop(); err != nil {
+		return err
+	}
+	m.core.Stop()
+	return nil
+}
+
+// GenerateConfigJSON generates mobile-friendly configuration in JSON format
+func GenerateConfigJSON() []byte {
+	nc := defaults.GenerateConfig()
+	nc.IfName = "none"
+	if json, err := json.Marshal(nc); err == nil {
+		return json
+	}
+	return nil
+}
+
+// GetAddressString gets the node's IPv6 address
+func (m *Yggdrasil) GetAddressString() string {
+	ip := m.core.Address()
+	return ip.String()
+}
+
+// GetSubnetString gets the node's IPv6 subnet in CIDR notation
+func (m *Yggdrasil) GetSubnetString() string {
+	subnet := m.core.Subnet()
+	return subnet.String()
+}
+
+// GetPublicKeyString gets the node's public key in hex form
+func (m *Yggdrasil) GetPublicKeyString() string {
+	return hex.EncodeToString(m.core.GetSelf().Key)
+}
+
+// GetCoordsString gets the node's coordinates
+func (m *Yggdrasil) GetCoordsString() string {
+	return fmt.Sprintf("%v", m.core.GetSelf().Coords)
+}
+
+func (m *Yggdrasil) GetPeersJSON() (result string) {
+	peers := []struct {
+		core.Peer
+		IP string
+	}{}
+	for _, v := range m.core.GetPeers() {
+		a := address.AddrForKey(v.Key)
+		ip := net.IP(a[:]).String()
+		peers = append(peers, struct {
+			core.Peer
+			IP string
+		}{
+			Peer: v,
+			IP:   ip,
+		})
+	}
+	if res, err := json.Marshal(peers); err == nil {
+		return string(res)
+	} else {
+		return "{}"
+	}
+}
+
+func (m *Yggdrasil) GetDHTJSON() (result string) {
+	if res, err := json.Marshal(m.core.GetDHT()); err == nil {
+		return string(res)
+	} else {
+		return "{}"
+	}
+}
+
+// GetMTU returns the configured node MTU. This must be called AFTER Start.
+func (m *Yggdrasil) GetMTU() int {
+	return int(m.core.MTU())
+}
+
+func GetVersion() string {
+	return version.BuildVersion()
+}
diff --git a/contrib/mobile/mobile_android.go b/contrib/mobile/mobile_android.go
new file mode 100644
index 0000000..f3206ac
--- /dev/null
+++ b/contrib/mobile/mobile_android.go
@@ -0,0 +1,12 @@
+// +build android
+
+package mobile
+
+import "log"
+
+type MobileLogger struct{}
+
+func (nsl MobileLogger) Write(p []byte) (n int, err error) {
+	log.Println(string(p))
+	return len(p), nil
+}
diff --git a/contrib/mobile/mobile_ios.go b/contrib/mobile/mobile_ios.go
new file mode 100644
index 0000000..253bbc0
--- /dev/null
+++ b/contrib/mobile/mobile_ios.go
@@ -0,0 +1,27 @@
+// +build ios
+
+package mobile
+
+/*
+#cgo CFLAGS: -x objective-c
+#cgo LDFLAGS: -framework Foundation
+#import <Foundation/Foundation.h>
+void Log(const char *text) {
+  NSString *nss = [NSString stringWithUTF8String:text];
+  NSLog(@"%@", nss);
+}
+*/
+import "C"
+import (
+	"unsafe"
+)
+
+type MobileLogger struct {
+}
+
+func (nsl MobileLogger) Write(p []byte) (n int, err error) {
+	p = append(p, 0)
+	cstr := (*C.char)(unsafe.Pointer(&p[0]))
+	C.Log(cstr)
+	return len(p), nil
+}
diff --git a/contrib/mobile/mobile_other.go b/contrib/mobile/mobile_other.go
new file mode 100644
index 0000000..7b7ed74
--- /dev/null
+++ b/contrib/mobile/mobile_other.go
@@ -0,0 +1,13 @@
+// +build !android,!ios
+
+package mobile
+
+import "fmt"
+
+type MobileLogger struct {
+}
+
+func (nsl MobileLogger) Write(p []byte) (n int, err error) {
+	fmt.Print(string(p))
+	return len(p), nil
+}
diff --git a/contrib/mobile/mobile_test.go b/contrib/mobile/mobile_test.go
new file mode 100644
index 0000000..1991640
--- /dev/null
+++ b/contrib/mobile/mobile_test.go
@@ -0,0 +1,16 @@
+package mobile
+
+import "testing"
+
+func TestStartYggdrasil(t *testing.T) {
+	ygg := &Yggdrasil{}
+	if err := ygg.StartAutoconfigure(); err != nil {
+		t.Fatalf("Failed to start Yggdrasil: %s", err)
+	}
+	t.Log("Address:", ygg.GetAddressString())
+	t.Log("Subnet:", ygg.GetSubnetString())
+	t.Log("Coords:", ygg.GetCoordsString())
+	if err := ygg.Stop(); err != nil {
+		t.Fatalf("Failed to stop Yggdrasil: %s", err)
+	}
+}
diff --git a/contrib/msi/build-msi.sh b/contrib/msi/build-msi.sh
index fd4ac3f..888075c 100644
--- a/contrib/msi/build-msi.sh
+++ b/contrib/msi/build-msi.sh
@@ -21,7 +21,7 @@ fi
 if [ "${APPVEYOR_PULL_REQUEST_HEAD_REPO_BRANCH}" != "" ];
 then
   git fetch --all
-  git checkout ${APPVEYOR_PULL_REQUEST_HEAD_REPO_BRANCH}
+#  git checkout ${APPVEYOR_PULL_REQUEST_HEAD_REPO_BRANCH}
 elif [ "${APPVEYOR_REPO_BRANCH}" != "" ];
 then
   git fetch --all
@@ -76,7 +76,7 @@ PKGVERSIONMS=$(echo $PKGVERSION | tr - .)
 # Download the Wintun driver
 if [ ! -d wintun ];
 then
-  curl -o wintun.zip https://www.wintun.net/builds/wintun-0.11.zip
+  curl -o wintun.zip https://www.wintun.net/builds/wintun-0.14.1.zip
   unzip wintun.zip
 fi
 if [ $PKGARCH = "x64" ]; then
diff --git a/contrib/semver/name.sh b/contrib/semver/name.sh
index 308e07b..53f56d5 100644
--- a/contrib/semver/name.sh
+++ b/contrib/semver/name.sh
@@ -3,8 +3,11 @@
 # Get the current branch name
 BRANCH=$(git symbolic-ref --short HEAD 2>/dev/null)
 
+if [ -n "$APPVEYOR_PULL_REQUEST_NUMBER" ]; then
+  printf "yggdrasil-pr%s" "$APPVEYOR_PULL_REQUEST_NUMBER"
+  exit 0
 # Complain if the git history is not available
-if [ $? != 0 ] || [ -z "$BRANCH" ]; then
+elif [ $? != 0 ] || [ -z "$BRANCH" ]; then
   printf "yggdrasil"
   exit 0
 fi
diff --git a/contrib/systemd/yggdrasil.service b/contrib/systemd/yggdrasil.service
index f8c2dd2..cdada6c 100644
--- a/contrib/systemd/yggdrasil.service
+++ b/contrib/systemd/yggdrasil.service
@@ -10,7 +10,7 @@ Group=yggdrasil
 ProtectHome=true
 ProtectSystem=true
 SyslogIdentifier=yggdrasil
-CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_RAW CAP_NET_BIND_SERVICE
+CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
 ExecStartPre=+-/sbin/modprobe tun
 ExecStart=/usr/bin/yggdrasil -useconffile /etc/yggdrasil.conf
 ExecReload=/bin/kill -HUP $MAINPID
diff --git a/go.mod b/go.mod
index 398504c..9c95755 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/yggdrasil-network/yggdrasil-go
 go 1.16
 
 require (
-	github.com/Arceliar/ironwood v0.0.0-20210619124114-6ad55cae5031
+	github.com/Arceliar/ironwood v0.0.0-20211125050254-8951369625d0
 	github.com/Arceliar/phony v0.0.0-20210209235338-dde1a8dca979
 	github.com/VividCortex/ewma v1.2.0 // indirect
 	github.com/cheggaaa/pb/v3 v3.0.8
@@ -17,10 +17,10 @@ require (
 	github.com/mitchellh/mapstructure v1.4.1
 	github.com/vishvananda/netlink v1.1.0
 	github.com/vishvananda/netns v0.0.0-20210104183010-2eb08e3e575f // indirect
-	golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a // indirect
-	golang.org/x/net v0.0.0-20210610132358-84b48f89b13b
-	golang.org/x/sys v0.0.0-20210611083646-a4fc73990273
-	golang.org/x/text v0.3.7-0.20210503195748-5c7c50ebbd4f
-	golang.zx2c4.com/wireguard v0.0.0-20210604143328-f9b48a961cd2
-	golang.zx2c4.com/wireguard/windows v0.3.14
+	golang.org/x/mobile v0.0.0-20220112015953-858099ff7816
+	golang.org/x/net v0.0.0-20211101193420-4a448f8816b3
+	golang.org/x/sys v0.0.0-20211102192858-4dd72447c267
+	golang.org/x/text v0.3.8-0.20211004125949-5bd84dd9b33b
+	golang.zx2c4.com/wireguard v0.0.0-20211017052713-f87e87af0d9a
+	golang.zx2c4.com/wireguard/windows v0.4.12
 )
diff --git a/go.sum b/go.sum
index 5d11fad..063b599 100644
--- a/go.sum
+++ b/go.sum
@@ -1,7 +1,8 @@
-github.com/Arceliar/ironwood v0.0.0-20210619124114-6ad55cae5031 h1:DZVDfYhVdu+0wAiRHoY1olyNkKxIot9UjBnbQFzuUlM=
-github.com/Arceliar/ironwood v0.0.0-20210619124114-6ad55cae5031/go.mod h1:RP72rucOFm5udrnEzTmIWLRVGQiV/fSUAQXJ0RST/nk=
+github.com/Arceliar/ironwood v0.0.0-20211125050254-8951369625d0 h1:QUqcb7BOcBU2p7Nax7pESOb8hrZYtI0Ts6j4v4mvcQo=
+github.com/Arceliar/ironwood v0.0.0-20211125050254-8951369625d0/go.mod h1:RP72rucOFm5udrnEzTmIWLRVGQiV/fSUAQXJ0RST/nk=
 github.com/Arceliar/phony v0.0.0-20210209235338-dde1a8dca979 h1:WndgpSW13S32VLQ3ugUxx2EnnWmgba1kCqPkd4Gk1yQ=
 github.com/Arceliar/phony v0.0.0-20210209235338-dde1a8dca979/go.mod h1:6Lkn+/zJilRMsKmbmG1RPoamiArC6HS73xbwRyp3UyI=
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/VividCortex/ewma v1.1.1/go.mod h1:2Tkkvm3sRDVXaiyucHiACn4cqf7DpdyLvmxzcbUokwA=
 github.com/VividCortex/ewma v1.2.0 h1:f58SaIzcDXrSy3kWaHNvuJgJ3Nmz59Zji6XoJR/q1ow=
 github.com/VividCortex/ewma v1.2.0/go.mod h1:nz4BbCtbLyFDeC9SUHbtcT5644juEuWfUAUnGx7j5l4=
@@ -38,42 +39,68 @@ github.com/vishvananda/netlink v1.1.0/go.mod h1:cTgwzPIzzgDAYoQrMm0EdrjRUBkTqKYp
 github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df/go.mod h1:JP3t17pCcGlemwknint6hfoeCVQrEMVwxRLRjXpq+BU=
 github.com/vishvananda/netns v0.0.0-20210104183010-2eb08e3e575f h1:p4VB7kIXpOQvVn1ZaTIVp+3vuYAXFe3OJEvjbUYJLaA=
 github.com/vishvananda/netns v0.0.0-20210104183010-2eb08e3e575f/go.mod h1:DD4vA1DwXk04H54A1oHXtwZmA0grkVMdPxx/VGLCah0=
+github.com/yuin/goldmark v1.4.0/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
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diff --git a/src/address/address_test.go b/src/address/address_test.go
new file mode 100644
index 0000000..a7939e0
--- /dev/null
+++ b/src/address/address_test.go
@@ -0,0 +1,114 @@
+package address
+
+import (
+	"bytes"
+	"crypto/ed25519"
+	"math/rand"
+	"testing"
+)
+
+func TestAddress_Address_IsValid(t *testing.T) {
+	var address Address
+	rand.Read(address[:])
+
+	address[0] = 0
+
+	if address.IsValid() {
+		t.Fatal("invalid address marked as valid")
+	}
+
+	address[0] = 0x03
+
+	if address.IsValid() {
+		t.Fatal("invalid address marked as valid")
+	}
+
+	address[0] = 0x02
+
+	if !address.IsValid() {
+		t.Fatal("valid address marked as invalid")
+	}
+}
+
+func TestAddress_Subnet_IsValid(t *testing.T) {
+	var subnet Subnet
+	rand.Read(subnet[:])
+
+	subnet[0] = 0
+
+	if subnet.IsValid() {
+		t.Fatal("invalid subnet marked as valid")
+	}
+
+	subnet[0] = 0x02
+
+	if subnet.IsValid() {
+		t.Fatal("invalid subnet marked as valid")
+	}
+
+	subnet[0] = 0x03
+
+	if !subnet.IsValid() {
+		t.Fatal("valid subnet marked as invalid")
+	}
+}
+
+func TestAddress_AddrForKey(t *testing.T) {
+	publicKey := ed25519.PublicKey{
+		189, 186, 207, 216, 34, 64, 222, 61, 205, 18, 57, 36, 203, 181, 82, 86,
+		251, 141, 171, 8, 170, 152, 227, 5, 82, 138, 184, 79, 65, 158, 110, 251,
+	}
+
+	expectedAddress := Address{
+		2, 0, 132, 138, 96, 79, 187, 126, 67, 132, 101, 219, 141, 182, 104, 149,
+	}
+
+	if *AddrForKey(publicKey) != expectedAddress {
+		t.Fatal("invalid address returned")
+	}
+}
+
+func TestAddress_SubnetForKey(t *testing.T) {
+	publicKey := ed25519.PublicKey{
+		189, 186, 207, 216, 34, 64, 222, 61, 205, 18, 57, 36, 203, 181, 82, 86,
+		251, 141, 171, 8, 170, 152, 227, 5, 82, 138, 184, 79, 65, 158, 110, 251,
+	}
+
+	expectedSubnet := Subnet{3, 0, 132, 138, 96, 79, 187, 126}
+
+	if *SubnetForKey(publicKey) != expectedSubnet {
+		t.Fatal("invalid subnet returned")
+	}
+}
+
+func TestAddress_Address_GetKey(t *testing.T) {
+	address := Address{
+		2, 0, 132, 138, 96, 79, 187, 126, 67, 132, 101, 219, 141, 182, 104, 149,
+	}
+
+	expectedPublicKey := ed25519.PublicKey{
+		189, 186, 207, 216, 34, 64, 222, 61,
+		205, 18, 57, 36, 203, 181, 127, 255,
+		255, 255, 255, 255, 255, 255, 255, 255,
+		255, 255, 255, 255, 255, 255, 255, 255,
+	}
+
+	if !bytes.Equal(address.GetKey(), expectedPublicKey) {
+		t.Fatal("invalid public key returned")
+	}
+}
+
+func TestAddress_Subnet_GetKey(t *testing.T) {
+	subnet := Subnet{3, 0, 132, 138, 96, 79, 187, 126}
+
+	expectedPublicKey := ed25519.PublicKey{
+		189, 186, 207, 216, 34, 64, 255, 255,
+		255, 255, 255, 255, 255, 255, 255, 255,
+		255, 255, 255, 255, 255, 255, 255, 255,
+		255, 255, 255, 255, 255, 255, 255, 255,
+	}
+
+	if !bytes.Equal(subnet.GetKey(), expectedPublicKey) {
+		t.Fatal("invalid public key returned")
+	}
+}
diff --git a/src/admin/getpeers.go b/src/admin/getpeers.go
index 9ccf9e2..ecb2872 100644
--- a/src/admin/getpeers.go
+++ b/src/admin/getpeers.go
@@ -19,6 +19,9 @@ type PeerEntry struct {
 	Port      uint64   `json:"port"`
 	Coords    []uint64 `json:"coords"`
 	Remote    string   `json:"remote"`
+	RXBytes   uint64   `json:"bytes_recvd"`
+	TXBytes   uint64   `json:"bytes_sent"`
+	Uptime    float64  `json:"uptime"`
 }
 
 func (a *AdminSocket) getPeersHandler(req *GetPeersRequest, res *GetPeersResponse) error {
@@ -31,6 +34,9 @@ func (a *AdminSocket) getPeersHandler(req *GetPeersRequest, res *GetPeersRespons
 			Port:      p.Port,
 			Coords:    p.Coords,
 			Remote:    p.Remote,
+			RXBytes:   p.RXBytes,
+			TXBytes:   p.TXBytes,
+			Uptime:    p.Uptime.Seconds(),
 		}
 	}
 	return nil
diff --git a/src/config/config_test.go b/src/config/config_test.go
new file mode 100644
index 0000000..8b6e14e
--- /dev/null
+++ b/src/config/config_test.go
@@ -0,0 +1,54 @@
+package config
+
+import (
+	"bytes"
+	"encoding/hex"
+	"testing"
+)
+
+func TestConfig_Keys(t *testing.T) {
+	var nodeConfig NodeConfig
+	nodeConfig.NewKeys()
+
+	publicKey1, err := hex.DecodeString(nodeConfig.PublicKey)
+
+	if err != nil {
+		t.Fatal("can not decode generated public key")
+	}
+
+	if len(publicKey1) == 0 {
+		t.Fatal("empty public key generated")
+	}
+
+	privateKey1, err := hex.DecodeString(nodeConfig.PrivateKey)
+
+	if err != nil {
+		t.Fatal("can not decode generated private key")
+	}
+
+	if len(privateKey1) == 0 {
+		t.Fatal("empty private key generated")
+	}
+
+	nodeConfig.NewKeys()
+
+	publicKey2, err := hex.DecodeString(nodeConfig.PublicKey)
+
+	if err != nil {
+		t.Fatal("can not decode generated public key")
+	}
+
+	if bytes.Equal(publicKey2, publicKey1) {
+		t.Fatal("same public key generated")
+	}
+
+	privateKey2, err := hex.DecodeString(nodeConfig.PrivateKey)
+
+	if err != nil {
+		t.Fatal("can not decode generated private key")
+	}
+
+	if bytes.Equal(privateKey2, privateKey1) {
+		t.Fatal("same private key generated")
+	}
+}
diff --git a/src/core/api.go b/src/core/api.go
index ae13d49..fabd743 100644
--- a/src/core/api.go
+++ b/src/core/api.go
@@ -2,12 +2,16 @@ package core
 
 import (
 	"crypto/ed25519"
+	"sync/atomic"
+	"time"
+
 	//"encoding/hex"
 	"encoding/json"
 	//"errors"
 	//"fmt"
 	"net"
 	"net/url"
+
 	//"sort"
 	//"time"
 
@@ -24,11 +28,14 @@ type Self struct {
 }
 
 type Peer struct {
-	Key    ed25519.PublicKey
-	Root   ed25519.PublicKey
-	Coords []uint64
-	Port   uint64
-	Remote string
+	Key     ed25519.PublicKey
+	Root    ed25519.PublicKey
+	Coords  []uint64
+	Port    uint64
+	Remote  string
+	RXBytes uint64
+	TXBytes uint64
+	Uptime  time.Duration
 }
 
 type DHTEntry struct {
@@ -74,6 +81,11 @@ func (c *Core) GetPeers() []Peer {
 		if name := names[p.Conn]; name != "" {
 			info.Remote = name
 		}
+		if linkconn, ok := p.Conn.(*linkConn); ok {
+			info.RXBytes = atomic.LoadUint64(&linkconn.rx)
+			info.TXBytes = atomic.LoadUint64(&linkconn.tx)
+			info.Uptime = time.Since(linkconn.up)
+		}
 		peers = append(peers, info)
 	}
 	return peers
diff --git a/src/core/link.go b/src/core/link.go
index 8797b88..f96c9be 100644
--- a/src/core/link.go
+++ b/src/core/link.go
@@ -14,6 +14,8 @@ import (
 	//"sync/atomic"
 	"time"
 
+	"sync/atomic"
+
 	"github.com/yggdrasil-network/yggdrasil-go/src/address"
 	"github.com/yggdrasil-network/yggdrasil-go/src/util"
 	"golang.org/x/net/proxy"
@@ -40,7 +42,7 @@ type linkInfo struct {
 type link struct {
 	lname    string
 	links    *links
-	conn     net.Conn
+	conn     *linkConn
 	options  linkOptions
 	info     linkInfo
 	incoming bool
@@ -124,7 +126,10 @@ func (l *links) call(u *url.URL, sintf string) error {
 func (l *links) create(conn net.Conn, name, linkType, local, remote string, incoming, force bool, options linkOptions) (*link, error) {
 	// Technically anything unique would work for names, but let's pick something human readable, just for debugging
 	intf := link{
-		conn:    conn,
+		conn: &linkConn{
+			Conn: conn,
+			up:   time.Now(),
+		},
 		lname:   name,
 		links:   l,
 		options: options,
@@ -185,7 +190,14 @@ func (intf *link) handler() (chan struct{}, error) {
 		return nil, errors.New("failed to decode metadata")
 	}
 	if !meta.check() {
-		intf.links.core.log.Errorf("Failed to connect to node: %s is incompatible version (local %s, remote %s)",
+		var connectError string
+		if intf.incoming {
+			connectError = "Rejected incoming connection"
+		} else {
+			connectError = "Failed to connect"
+		}
+		intf.links.core.log.Debugf("%s: %s is incompatible version (local %s, remote %s)",
+			connectError,
 			intf.lname,
 			fmt.Sprintf("%d.%d", base.ver, base.minorVer),
 			fmt.Sprintf("%d.%d", meta.ver, meta.minorVer),
@@ -265,3 +277,24 @@ func (intf *link) close() {
 func (intf *link) name() string {
 	return intf.lname
 }
+
+type linkConn struct {
+	// tx and rx are at the beginning of the struct to ensure 64-bit alignment
+	// on 32-bit platforms, see https://pkg.go.dev/sync/atomic#pkg-note-BUG
+	rx uint64
+	tx uint64
+	up time.Time
+	net.Conn
+}
+
+func (c *linkConn) Read(p []byte) (n int, err error) {
+	n, err = c.Conn.Read(p)
+	atomic.AddUint64(&c.rx, uint64(n))
+	return
+}
+
+func (c *linkConn) Write(p []byte) (n int, err error) {
+	n, err = c.Conn.Write(p)
+	atomic.AddUint64(&c.tx, uint64(n))
+	return
+}