> Source: [sk182623](https://support.checkpoint.com/results/sk/sk182623)

# sk182623 - Security Gateway in the Bridge Mode, with SecureXL in the UPPAK mode, drops on IPX / Ixia monitor connections

| Property | Value |
|----------|-------|
| Solution ID | sk182623 |
| Date Created | 2024-08-26 |
| Last Modified | 2025-02-26 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R81.20 |
| OS | Gaia |

## Symptoms

- * IPX / Ixia monitor connections do not pass through a Security Gateway in the Bridge Mode.

* Kernel debug on the Security Gateway (`fw ctl zdebug + drop`) shows that IPX traffic (protocol 0x8137) is dropped.

  Example:

  `[ADP];adp_netfilter_brin: Ethtype 0x8137 not recognized (skb->protocol=0x8137) Bridge packet received on interface eth1-02(26) (unsupported feature) (DROP);`
* Following [sk101371](https://support.checkpoint.com/results/sk/sk101371) to set the value of the "`fwaccept_unknown_protocol`" parameter to 1 does not resolve the issue.

* Changing the SecureXL mode on the Security Gateway from UPPAK to KPPAK and rebooting, resolves the issue.

## Solution

This problem was fixed. The fix is included starting from:

* [Check Point Quantum R82](https://support.checkpoint.com/results/sk/sk181127)
* [Jumbo Hotfix Accumulator for R81.20](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/Default.htm) starting from Take 90

Check Point recommends to always upgrade to the most recent version   
([upgrade Security Gateway](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=overview&product=435) / [upgrade Security Management Server](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=overview&product=184) / [upgrade Multi-Domain Security Management](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=overview&product=166)).

<br />

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://support.checkpoint.com/results/sk/sk168597).

<br />

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