diff --git a/lsio/duckdns/docker-compose.yaml b/lsio/duckdns/docker-compose.yaml
index 25190ed..35e991f 100644
--- a/lsio/duckdns/docker-compose.yaml
+++ b/lsio/duckdns/docker-compose.yaml
@@ -9,6 +9,7 @@ services:
   duckdns:
     image: ghcr.io/linuxserver/duckdns
     container_name: duckdns
+    network_mode: host # optional
     environment:
       # for UserID
       - PUID=${PUID:-1024} # optional
@@ -20,6 +21,8 @@ services:
       - SUBDOMAINS=subdomain1,subdomain2
       # DuckDNS token
       - TOKEN=token
+      # Set to `ipv6` or `ipv4` to update  **only** your public IPv4/6 address. Set to `both` to update IPv6 and IPv4 address. This variable makes use of a [third-party service](#notice-regarding-automatic-detection). Omitting this variable uses DuckDNS for detection and only supports IPv4. `both` and `ipv6` modes needs [host networking](#networking-net).
+      - UPDATE_IP=ipv4 # optional
       # Set to `true` to log to file (also need to map /config).
       - LOG_FILE=false # optional
     volumes:
diff --git a/lsio/duckdns/docker-run.sh b/lsio/duckdns/docker-run.sh
index 4c58a69..c2e5343 100644
--- a/lsio/duckdns/docker-run.sh
+++ b/lsio/duckdns/docker-run.sh
@@ -6,11 +6,13 @@
 . ./.env
 docker run -d \
   --name=duckdns \
+  --net=host `# optional` `# Use host networking for IPv6 detection` \
   -e PUID=${PUID:-1024} `# optional` `# for UserID` \
   -e PGID=${PGID:-100} `# optional` `# for GroupID` \
   -e TZ=${TZ:-Europe/Amsterdam} `# optional` `# specify a timezone to use, see this [list](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List).` \
   -e SUBDOMAINS=subdomain1,subdomain2 `# multiple subdomains allowed, comma separated, no spaces, if your domain is user.duckdns.org you put user, not a sub-subdomain` \
   -e TOKEN=token `# DuckDNS token` \
+  -e UPDATE_IP=ipv4 `# optional` `# Set to `ipv6` or `ipv4` to update  **only** your public IPv4/6 address. Set to `both` to update IPv6 and IPv4 address. This variable makes use of a [third-party service](#notice-regarding-automatic-detection). Omitting this variable uses DuckDNS for detection and only supports IPv4. `both` and `ipv6` modes needs [host networking](#networking-net).` \
   -e LOG_FILE=false `# optional` `# Set to `true` to log to file (also need to map /config).` \
   -v ${BASEDIR:-/volume1/docker}/duckdns/config:/config `# optional` `# Used in conjunction with logging to file.` \
   --restart unless-stopped \