diff --git a/.env b/.env
index cbed5e3..1a2207a 100644
--- a/.env
+++ b/.env
@@ -2,4 +2,4 @@ SNMP_COMMUNITY=public
 CUSTOM_OID=.1.3.6.1.4.1.38446.1.2.4.1.9.1
 RANGE_MIN=0
 RANGE_MAX=6
-
+SNMP_PORT=161
diff --git a/Dockerfile b/Dockerfile
index 0613b75..27b8f38 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,8 +16,8 @@ RUN chmod +x /usr/local/bin/custom_snmp_script.py
 # Configure snmpd to use the custom script
 RUN echo "extend customOID /usr/local/bin/custom_snmp_script.py" >> /etc/snmp/snmpd.conf
 
-# Expose the SNMP port
+# Expose the SNMP port using an environment variable
 EXPOSE 161/udp
 
 # Start snmpd with environment variables
-CMD ["sh", "-c", "snmpd -f -c /etc/snmp/snmpd.conf -Lf /dev/null -p /var/run/snmpd.pid -a -x $SNMP_COMMUNITY"]
+CMD ["sh", "-c", "snmpd -f -c /etc/snmp/snmpd.conf -Lf /dev/null -p /var/run/snmpd.pid -a -x $SNMP_COMMUNITY -p $SNMP_PORT"]
diff --git a/README.md b/README.md
index 63e568c..3265e2a 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # SNMPD Custom OID Docker Container
 
-This Docker container runs `snmpd` with a custom script that provides a specific OID. The value of this OID increases randomly by a small amount every 4 minutes. The SNMP community string, OID, and increment range can be configured using a `.env` file.
+This Docker container runs `snmpd` with a custom script that provides a specific OID. The value of this OID increases randomly by a small amount every 4 minutes. The SNMP community string, OID, increment range, and port can be configured using a `.env` file.
 
 ## Features
 
@@ -31,6 +31,7 @@ SNMP_COMMUNITY=public
 CUSTOM_OID=.1.3.6.1.4.1.38446.1.2.4.1.9.1
 RANGE_MIN=0
 RANGE_MAX=6
+SNMP_PORT=161
 ```
 
 ### Step 2: Build the Docker Image
@@ -46,9 +47,11 @@ docker build -t snmpd-custom .
 Start the Docker container with the following command, using the `--env-file` option to pass the environment variables:
 
 ```bash
-docker run -d -p 161:161/udp --name snmpd-custom-container --env-file .env snmpd-custom
+docker run -d -p ${SNMP_PORT}:${SNMP_PORT}/udp --name snmpd-custom-container --env-file .env snmpd-custom
 ```
 
+Replace `${SNMP_PORT}` with the actual port number you want to use, or use the value from your `.env` file.
+
 ### Step 4: Verify the Setup
 
 You can verify that the container is running and the SNMP daemon is providing the custom OID by using an SNMP client to query the OID:
@@ -65,13 +68,18 @@ You should see the value incrementing randomly every 4 minutes.
 - **Increment Range**: Modify the `RANGE_MIN` and `RANGE_MAX` in the `.env` file to change how much the value increments.
 - **Update Interval**: Adjust the sleep interval in the script to change the frequency of updates.
 - **Community String and OID**: Modify the `.env` file to change the SNMP community string and OID.
+- **SNMP Port**: Modify the `SNMP_PORT` in the `.env` file to change the port on which `snmpd` listens.
 
 ## Notes
 
-- Ensure that the SNMP community string in the `.env` file matches your configuration.
-- The container exposes port 161 for SNMP communication.
+- Ensure that the SNMP community string and port in the `.env` file match your configuration.
+- The container exposes the specified SNMP port for communication.
 
 ## License
 
 This project is licensed under the MIT License.
 
+---
+
+Feel free to contribute or modify the setup to fit your specific needs!
+