diff --git a/.github/workflows/docker-tests.yml b/.github/workflows/docker-tests.yml
index 5bb06ef..8055df4 100644
--- a/.github/workflows/docker-tests.yml
+++ b/.github/workflows/docker-tests.yml
@@ -17,5 +17,5 @@ jobs:
     - name: Build the Docker images
       run: docker-tests/build-docker-images.sh
     - name: Run the Docker tests
-      run: docker-tests/run-docker-tests.sh userspace
+      run: docker-tests/run-docker-tests.sh --userspace --verbose
 
diff --git a/docker-tests/build-docker-images.sh b/docker-tests/build-docker-images.sh
index e6f1889..18b0884 100755
--- a/docker-tests/build-docker-images.sh
+++ b/docker-tests/build-docker-images.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -ex
 
-SELF_DIR="$(dirname "$0")"
+SELF_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 cd "$SELF_DIR/.."
 
 docker build -t innernet -f "$SELF_DIR/Dockerfile.innernet" .
diff --git a/docker-tests/run-docker-tests.sh b/docker-tests/run-docker-tests.sh
index 23b6265..1eb4167 100755
--- a/docker-tests/run-docker-tests.sh
+++ b/docker-tests/run-docker-tests.sh
@@ -2,37 +2,54 @@
 set -e
 shopt -s nocasematch
 
-SELF_DIR="$(dirname "$0")"
+SELF_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 cd "$SELF_DIR/.."
 
-if [[ $# -eq 1 ]]; then
-    case "$1" in
-        kernel)
-            INNERNET_ARGS="-vvv"
-            ;;
-        userspace)
-            INNERNET_ARGS="-vvv --backend userspace"
-            ;;
-        *)
-            echo "invalid backend (must be kernel or userspace)"
-            exit 1
-    esac
-else
+help() {
     cat >&2 <<-_EOF
-    Usage: "${0##*/}" <BACKEND>
-
-    BACKEND: "kernel" or "userspace"
+Usage: "${0##*/}" [options...] (<test>)
+ --userspace  Use userspace wireguard instead of kernel one
+ --verbose    Print verbose innernet logs
 _EOF
-    exit
-fi
+}
+
+TEST_FILTER=()
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    --userspace)
+        INNERNET_ARGS="$INNERNET_ARGS --backend userspace"
+        shift
+        ;;
+    --verbose)
+        INNERNET_ARGS="$INNERNET_ARGS -vvv"
+        CLIENT_ARGS="$CLIENT_ARGS --verbose"
+        SERVER_RUST_LOG="debug"
+        CLIENT_RUST_LOG="trace"
+        shift
+        ;;
+    --help)
+        help
+        exit
+        ;;
+    -*)
+        echo "Invalid option."
+        help
+        exit 1
+        ;;
+    *)
+        TEST_FILTER+=("$1")
+        shift
+        ;;
+  esac
+done
 
 cmd() {
-	echo "[#] $*" >&2
-	"$@"
+    echo "[#] $*" >&2
+    "$@"
 }
 
 info() {
-  echo -e "\033[0;34m- $@\033[0m" 1>&2
+    echo -e "\033[0;34m- $@\033[0m" 1>&2
 }
 
 tmp_dir=$(mktemp -d -t innernet-tests-XXXXXXXXXX)
@@ -53,7 +70,7 @@ SERVER_CONTAINER=$(cmd docker create -it --rm \
     --network "$NETWORK" \
     --ip 172.18.1.1 \
     --volume /dev/net/tun:/dev/net/tun \
-    --env RUST_LOG=debug \
+    --env RUST_LOG="$SERVER_RUST_LOG" \
     --env INNERNET_ARGS="$INNERNET_ARGS" \
     --cap-add NET_ADMIN \
     innernet)
@@ -63,17 +80,23 @@ info "server started as $SERVER_CONTAINER"
 info "Waiting for server to initialize."
 cmd sleep 5
 
+create_peer_docker() {
+    local IP=$1
+    cmd docker create --rm -it \
+        --network "$NETWORK" \
+        --ip $IP \
+        --volume /dev/net/tun:/dev/net/tun \
+        --cap-add NET_ADMIN \
+        --env RUST_LOG="$CLIENT_RUST_LOG" \
+        --env INTERFACE=evilcorp \
+        --env INNERNET_ARGS="$INNERNET_ARGS" \
+        --env CLIENT_ARGS="$CLIENT_ARGS" \
+        innernet /app/start-client.sh
+}
+
 info "Starting first peer."
 cmd docker cp "$SERVER_CONTAINER:/app/peer1.toml" "$tmp_dir"
-PEER1_CONTAINER=$(cmd docker create --rm -it \
-    --network "$NETWORK" \
-    --ip 172.18.1.2 \
-    --volume /dev/net/tun:/dev/net/tun \
-    --env INTERFACE=evilcorp \
-    --env RUST_LOG=trace \
-    --env INNERNET_ARGS="$INNERNET_ARGS" \
-    --cap-add NET_ADMIN \
-    innernet /app/start-client.sh)
+PEER1_CONTAINER=$(create_peer_docker 172.18.1.2)
 info "peer1 started as $PEER1_CONTAINER"
 cmd docker cp "$tmp_dir/peer1.toml" "$PEER1_CONTAINER:/app/invite.toml"
 cmd docker start -a "$PEER1_CONTAINER" | sed -e 's/^/\x1B[0;96mpeer 1\x1B[0m: /' &
@@ -106,99 +129,87 @@ cmd docker exec "$PEER1_CONTAINER" innernet \
 cmd docker cp "$PEER1_CONTAINER:/app/peer2.toml" "$tmp_dir"
 
 info "Starting second peer."
-PEER2_CONTAINER=$(docker create --rm -it \
-    --network "$NETWORK" \
-    --ip 172.18.1.3 \
-    --volume /dev/net/tun:/dev/net/tun \
-    --cap-add NET_ADMIN \
-    --env INTERFACE=evilcorp \
-    --env INNERNET_ARGS="$INNERNET_ARGS" \
-    innernet /app/start-client.sh)
+PEER2_CONTAINER=$(create_peer_docker 172.18.1.3)
 info "peer2 started as $PEER2_CONTAINER"
 cmd docker cp "$tmp_dir/peer2.toml" "$PEER2_CONTAINER:/app/invite.toml"
 cmd docker start -a "$PEER2_CONTAINER" | sed -e 's/^/\x1B[0;93mpeer 2\x1B[0m: /' &
 sleep 10
 
-info "Creating short-lived invitation for third peer."
-cmd docker exec "$PEER1_CONTAINER" innernet \
-    add-peer evilcorp \
-    --name "peer3" \
-    --cidr "robots" \
-    --admin false \
-    --ip "10.66.2.100" \
-    --save-config "/app/peer3.toml" \
-    --invite-expires "1s" \
-    --yes
+test_short_lived_invitation() {
+    info "Creating short-lived invitation for third peer."
+    cmd docker exec "$PEER1_CONTAINER" innernet \
+        add-peer evilcorp \
+        --name "peer3" \
+        --cidr "robots" \
+        --admin false \
+        --ip "10.66.2.100" \
+        --save-config "/app/peer3.toml" \
+        --invite-expires "1s" \
+        --yes
 
-info "waiting 15 seconds to see if the server clears out the IP address."
-sleep 11
+    info "waiting 15 seconds to see if the server clears out the IP address."
+    sleep 11
 
-info "Re-requesting invite after expiration with the same parameters."
-cmd docker exec "$PEER1_CONTAINER" innernet \
-    add-peer evilcorp \
-    --name "peer3" \
-    --cidr "robots" \
-    --admin false \
-    --ip "10.66.2.100" \
-    --save-config "/app/peer3_2.toml" \
-    --invite-expires "30m" \
-    --yes
+    info "Re-requesting invite after expiration with the same parameters."
+    cmd docker exec "$PEER1_CONTAINER" innernet \
+        add-peer evilcorp \
+        --name "peer3" \
+        --cidr "robots" \
+        --admin false \
+        --ip "10.66.2.100" \
+        --save-config "/app/peer3_2.toml" \
+        --invite-expires "30m" \
+        --yes
+}
 
-info "peer2 started as $PEER2_CONTAINER"
-cmd docker cp "$tmp_dir/peer2.toml" "$PEER2_CONTAINER:/app/invite.toml"
-cmd docker start -a "$PEER2_CONTAINER" | sed -e 's/^/\x1B[0;93mpeer 2\x1B[0m: /' &
-sleep 10
+test_simultaneous_redemption() {
+    info "Creating invitation for fourth and fifth peer from first peer."
+    cmd docker exec "$PEER1_CONTAINER" innernet \
+        add-peer evilcorp \
+        --name "peer4" \
+        --cidr "robots" \
+        --admin false \
+        --auto-ip \
+        --save-config "/app/peer4.toml" \
+        --invite-expires "30s" \
+        --yes
+    cmd docker cp "$PEER1_CONTAINER:/app/peer4.toml" "$tmp_dir"
+    cmd docker exec "$PEER1_CONTAINER" innernet \
+        add-peer evilcorp \
+        --name "peer5" \
+        --cidr "robots" \
+        --admin false \
+        --auto-ip \
+        --save-config "/app/peer5.toml" \
+        --invite-expires "30s" \
+        --yes
+    cmd docker cp "$PEER1_CONTAINER:/app/peer5.toml" "$tmp_dir"
 
-info "Creating invitation for fourth and fifth peer from first peer."
-cmd docker exec "$PEER1_CONTAINER" innernet \
-    add-peer evilcorp \
-    --name "peer4" \
-    --cidr "robots" \
-    --admin false \
-    --auto-ip \
-    --save-config "/app/peer4.toml" \
-    --invite-expires "30s" \
-    --yes
-cmd docker cp "$PEER1_CONTAINER:/app/peer4.toml" "$tmp_dir"
-cmd docker exec "$PEER1_CONTAINER" innernet \
-    add-peer evilcorp \
-    --name "peer5" \
-    --cidr "robots" \
-    --admin false \
-    --auto-ip \
-    --save-config "/app/peer5.toml" \
-    --invite-expires "30s" \
-    --yes
-cmd docker cp "$PEER1_CONTAINER:/app/peer5.toml" "$tmp_dir"
+    info "Starting fourth and fifth peer and redeeming simultaneously."
+    PEER4_CONTAINER=$(create_peer_docker 172.18.1.4)
+    cmd docker cp "$tmp_dir/peer4.toml" "$PEER4_CONTAINER:/app/invite.toml"
+    PEER5_CONTAINER=$(create_peer_docker 172.18.1.5)
+    cmd docker cp "$tmp_dir/peer5.toml" "$PEER5_CONTAINER:/app/invite.toml"
 
-info "Starting fourth and fifth peer and redeeming simultaneously."
-PEER4_CONTAINER=$(docker create --rm -it \
-    --network "$NETWORK" \
-    --ip 172.18.1.4 \
-    --volume /dev/net/tun:/dev/net/tun \
-    --cap-add NET_ADMIN \
-    --env INTERFACE=evilcorp \
-    --env INNERNET_ARGS="$INNERNET_ARGS" \
-    innernet /app/start-client.sh)
-cmd docker cp "$tmp_dir/peer4.toml" "$PEER4_CONTAINER:/app/invite.toml"
-PEER5_CONTAINER=$(docker create --rm -it \
-    --network "$NETWORK" \
-    --ip 172.18.1.5 \
-    --volume /dev/net/tun:/dev/net/tun \
-    --cap-add NET_ADMIN \
-    --env INTERFACE=evilcorp \
-    --env INNERNET_ARGS="$INNERNET_ARGS" \
-    innernet /app/start-client.sh)
-cmd docker cp "$tmp_dir/peer5.toml" "$PEER5_CONTAINER:/app/invite.toml"
+    cmd docker start -a "$PEER4_CONTAINER" | sed -e 's/^/\x1B[0;92mpeer 4\x1B[0m: /' &
+    info "peer4 started as $PEER4_CONTAINER"
+    cmd docker start -a "$PEER5_CONTAINER" | sed -e 's/^/\x1B[0;94mpeer 5\x1B[0m: /' &
+    info "peer5 started as $PEER5_CONTAINER"
 
-cmd docker start -a "$PEER4_CONTAINER" | sed -e 's/^/\x1B[0;92mpeer 4\x1B[0m: /' &
-info "peer4 started as $PEER4_CONTAINER"
-cmd docker start -a "$PEER5_CONTAINER" | sed -e 's/^/\x1B[0;94mpeer 5\x1B[0m: /' &
-info "peer5 started as $PEER5_CONTAINER"
+    info "Checking connectivity betweeen peers."
+    cmd docker exec "$PEER2_CONTAINER" ping -c3 10.66.0.1
+    cmd docker exec "$PEER2_CONTAINER" ping -c3 10.66.1.1
+}
 
-info "Checking connectivity betweeen peers."
-cmd docker exec "$PEER2_CONTAINER" ping -c3 10.66.0.1
-cmd docker exec "$PEER2_CONTAINER" ping -c3 10.66.1.1
+# Run tests (functions prefixed with test_) in alphabetical order.
+# Optional filter provided by positional arguments is applied.
+for func in $(declare -F | awk '{print $3}'); do
+    if [[ "$func" =~ ^test_ ]]; then
+        if [ ${#TEST_FILTER[@]} -eq 0 ] || [[ "${TEST_FILTER[*]}" =~ "$func" ]]; then
+            $func
+        fi
+    fi
+done
 
 echo
-info "test succeeded."
+info "Test succeeded."
diff --git a/docker-tests/start-client.sh b/docker-tests/start-client.sh
index 263421d..9e98907 100755
--- a/docker-tests/start-client.sh
+++ b/docker-tests/start-client.sh
@@ -2,6 +2,7 @@
 set -e
 
 INTERFACE="${INTERFACE:-innernet}"
+
 innernet $INNERNET_ARGS install \
     --name "$INTERFACE" \
     --delete-invite \
@@ -9,6 +10,10 @@ innernet $INNERNET_ARGS install \
     /app/invite.toml
 
 while true; do
-    innernet $INNERNET_ARGS up --no-write-hosts "$INTERFACE"
+    if [[ $CLIENT_ARGS =~ --verbose ]]; then
+        innernet $INNERNET_ARGS up --no-write-hosts "$INTERFACE"
+    else
+        innernet $INNERNET_ARGS up --no-write-hosts "$INTERFACE" > /dev/null
+    fi
     sleep 1
 done