Update pfsense.mdx (#25608)

* Update pfsense.mdx

PFsense devices can not disable Anti-replay protection, so replay protection must be enabled on the cloudflare side.

* Apply suggestions from code review

---------

Co-authored-by: marciocloudflare <[email protected]>

Author: jmanzanoCF

src/content/docs/magic-wan/configuration/manually/third-party/pfsense.mdx

@@ -49,6 +49,7 @@ Use the Cloudflare dashboard or API to [configure two IPsec tunnels](/magic-wan/
    - **Health check rate**: _Medium_
    - **Health check type**: _Request_
    - **Health check direction**: _Bidirectional_
+	- **Turn on replay protection**: Enable
 2. Select **Add pre-shared key later** > **Add tunnels**.
 3. Repeat the process to create a second IPsec tunnel with the following options:
    - **Tunnel name**: `PF_TUNNEL_02`
@@ -58,6 +59,7 @@ Use the Cloudflare dashboard or API to [configure two IPsec tunnels](/magic-wan/
    - **Health check rate**: _Medium_
    - **Health check type**: _Request_
    - **Health check direction**: _Bidirectional_
+   - **Turn on replay protection**: Enable
 4. Select **Add pre-shared key later** > **Add tunnels**.
 
 :::note