> Source: [sk106572](https://support.checkpoint.com/results/sk/sk106572)

# sk106572 - IPv6 static route in Gaia OS with "ping" option fails to send ping in a ClusterXL with IPv6 Virtual IP

| Property | Value |
|----------|-------|
| Solution ID | sk106572 |
| Date Created | 2015-06-21 |
| Last Modified | 2015-10-20 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- * IPv6 static route in Gaia OS with "ping" option fails to send ping in a ClusterXL with IPv6 Virtual IP.

  *Example of configuration*:
  `
  set ipv6 static-route default nexthop Gateway xxxx: xxxx: xxxx: 5 :: 11 on priority 1`  
  ` 
  set ipv6 static-route default nexthop Gateway xxxx: xxxx: xxxx: 5 :: 12 on priority 2`  
  `
  set ipv6 static-route default on ping6 
  `
* RouteD traces ('`set trace global all on`') show in */var/log/routed.log*:

  `
  rt_static_ping6_send(...): sending ping failed to `*IPv6_ADDRESS*   
  ` 
  rt_static_ping6_send(...): sending ping to `*IPv6_ADDRESS*   
  `
  task_send_packet_iovec: task ICMP6 socket ... length 8 if_index 0 from `*IPv6_ADDRESS*` to `*IPv6_ADDRESS* `: Invalid argument`  
  ` 
  rt_static_ping6_send(...): sending ping failed to `*IPv6_ADDRESS*   
  `
  rt_static_ping_destroy_gateway_tree(...): Deleting `*IPv6_ADDRESS*` ping count 1
  `

## Cause

RouteD sends the IPV6 ping with Cluster VIP as source address.  
Linux kernel check if the source IP address matches any IP address configured on the machine's physical interfaces.  
Since Cluster VIP does not belong to any of the physical interfaces, ping is not sent.

## Solution

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