> Source: [sk176523](https://support.checkpoint.com/results/sk/sk176523)

# sk176523 - IPv6 traffic sent to the standby chassis

| Property | Value |
|----------|-------|
| Solution ID | sk176523 |
| Date Created | 2021-11-24 |
| Last Modified | 2021-12-29 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R81.10 (EOS), R81 (EOS) |

## Symptoms

- * When rebooting a member from the standby site, it may send GARP when booting and cause a connectivity issue - IPv6 traffic sent to the standby chassis.
* Standby chassis sending neighbor solicitation packet to the network.
* SW/Router sending traffic to the standby chassis instead the active chassis.

## Cause

When the ARP entry timeout is going to expire in the standby chassis:  

`[Expert@Host:0]# g_all ip -6 neigh`  
`2_01:`  
`X.X.X.X dev bond4 `**FAILED/STALE**  
`2_02:`  
`X.X.X.X dev bond4 `**FAILED/STALE**  

The standby chassis sending neighbor solicitation packet to the network and causing the SW/Router to send the traffic to standby chassis instead to the active Chassis.

## Solution

This problem was fixed. The fix is included in:

* [Jumbo Hotfix Accumulator for R81.10](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk175186) starting from Take 14
* [Jumbo Hotfix Accumulator for R81](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk170114) starting from Take 51

If you choose not to upgrade, Check Point can supply a **Hotfix** . [Contact Check Point Support](https://www.checkpoint.com/support-services/contact-support/) to get a Hotfix for this issue.  
A Support Engineer will make sure the Hotfix is compatible with your environment before providing the Hotfix.  
For faster resolution and verification, please collect [CPinfo files](http://supportcontent.checkpoint.com/solutions?id=sk92739) from the Security Management Server and Security Gateways involved in the case.

**Hotfix installation instructions:**   
Refer to [sk168597 - How to install a Hotfix](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk168597).

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