> Source: [sk176929](https://support.checkpoint.com/results/sk/sk176929)

# sk176929 - Traffic sent from a specific Security Group Member to a host fails because it cannot learn the MAC address of that host

| Property | Value |
|----------|-------|
| Solution ID | sk176929 |
| Date Created | 2021-12-14 |
| Last Modified | 2022-10-03 |
| Technical Level | General |
| Products | Scalable Platforms |
| Versions | R81.10 (EOS) |
| OS | Gaia |

## Symptoms

- * Traffic sent from a specific Security Group Member to a host does not get a response from that host.

* ARP inconsistency messages shown when running asg diagnostics (asg_arp -v).
* Output of the "`arp -a`" command on the problematic Security Group Member does not show the MAC address of the destination host.

* Configuring a static ARP entry for the MAC address and IP address of the destination host on the problematic Security Group Member resolves the issue.

* ARP debug on the problematic Security Group Member during the issue shows these lines:

  ```
  
  dump_error_if_from_fwd_token: looking for ifn of X.X.X.X
  dump_error_if_from_fwd_token: Interface was not found, returning -1
  fwha_arp_ccp_reply_or_garp_process: Can't translate interface token type 1 key X.X.X.X;
  ```

## 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 38
* [Jumbo Hotfix Accumulator for R81](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk170114) starting from Take 60
* [Jumbo Hotfix Accumulator for R80.30SP](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk165312&partition=Basic&product=Quantum) starting from Take 101
* [Jumbo Hotfix Accumulator for R80.20SP](https://supportcenter.us.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk155832) starting from Take 331

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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