> Source: [sk63131](https://support.checkpoint.com/results/sk/sk63131)

# sk63131 - VPN traffic dropped by "vpn_inbound_policy_chain Reason: vpn inbound nat after vm failed"

| Property | Value |
|----------|-------|
| Solution ID | sk63131 |
| Date Created | 2011-05-22 |
| Last Modified | 2013-10-28 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |

## Symptoms

- * In a ClusterXL or 3rd-party cluster environment (IPSO VRRP, IP Clustering, OPSEC Cluster), remote access VPN or site-to-site VPN connections fail to establish correctly
* In a remote access environment, the user may observe that they connect to the site but then disconnect within the next 20 seconds
* Traffic captures (fw ctl zdebug + drop) on the gateway show IKE (TCP port 500) or NAT-T (UDP port 4500) traffic being dropped by "vpn_inbound_policy_chain"

## Cause

Cluster membership is disabled in `cpconfig`

## Solution

This solution requires authentication. Please log in to view the full solution.

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