# Create Access rules allowing third-party monitoring

If a third-party device and the Log Server are separated by a Engine or Layer 2 Engine, edit the Policy to allow traffic from the device to the Log Server.

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For more details about the product and how to configure features, click Help or press F1.

## Steps

1. Select Engine.
2. Expand Policies, then browse to the type of policy you want to edit.
3. Right-click the Engine or Layer 2 Engine policy, then select Edit Engine Policy or Edit Layer 2 Engine Policy.
4. Switch to the IPv4 Access or IPv6 Access tab, then add an Access rule with the following values:
   - Source — the third-party element.
   - Destination — your Log Server.

   - Service — ICMP Ping, SNMP (UDP), or SNMP (TCP).

     The Service depends on the probing method that is used in the Probing Profile selected in the Monitoring rule.

   - Action — Allow.
   - Logging — None.
5. Save and install the policy to start using the new configuration.