Bug 1263561
| Summary: | vlan tag removed in promiscuous mode with kernel 3.x and 4.x. working version is 2.6.36 | ||||||
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| Product: | Red Hat Enterprise Linux 3 | Reporter: | Anitha <anitha.lashmi> | ||||
| Component: | kernel | Assignee: | Red Hat Kernel Manager <kernel-mgr> | ||||
| Status: | CLOSED DUPLICATE | QA Contact: | Red Hat Kernel QE team <kernel-qe> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 3.0 | ||||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | i386 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2015-09-22 12:16:46 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
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could someone please respond to this vlan stripping in Rx Linux? Please let me know if specific information is required. we wanted to know the working version of vlan tagging in 3.x/4.x version of kernel. Appreciate your inputs. it seems Rx vlan tagging behavior in Linux is changed between 2.6.32-504.16.2(working) and 2.6.32-504.23.4(failed). The issue is still seen in latest 2.6.32-573.3.1.el6.i686. could someone please look into this issue in priority? Thanks.. *** This bug has been marked as a duplicate of bug 1264316 *** |
Created attachment 1073910 [details] vlan tag removed in promiscuous mode with kernel 3.x and 4.x. working version is 2.6.36 Description of problem: VLAN tagged packets are not received in application/program and Linux is stripping vlan tag and send to our program. with kernel 2.6.36 version, the vlan tagging works. below are the tried out version. we do not see any working version of vlan tagging in 3.x and 4.x. kernel-2.6.32-431.el6.i686 - passed kernel-2.6.32-504.16.2.el6.i686 -passed kernel-2.6.32-504.23.4.el6.i686 -not working kernel-2.6.32-504.30.3.el6.i686 - not working kernel-2.6.32-573.3.1.el6.i686 -not working Linux centos-6.5 2.6.36 -passed Linux centos-6.5 3.5.0 - not working Linux centos 4.2.0 -- not working as mentioned in search forum, we have tried to turn on/off rx-vlan-filter and offload setting, but we could not change it, as it is denoted as [fixed]. to narrow down whether it is driver issue, with pcnet32 driver with failure kernel, eventhough rx-vlan-filter is off as below, still facing issue. so independent of driver, Kernel version differs in working and failure cases. [root@localhost drivers]# ethtool -k eth5 | grep vlan rx-vlan-offload: off [fixed] tx-vlan-offload: off [fixed] rx-vlan-filter: off [fixed] vlan-challenged: off [fixed] Version-Release number of selected component (if applicable): tried in 3.0.4/3.1.0.2/3.2.4.2 and 4.2.0 How reproducible: always with failure version Steps to Reproduce: 1.ping vlan packets from external device to application configured vlan runs in Linux. 2.vlan tagging is removed in Linux and sent to application. Actual results: vlan tag is stripped out in promiscuous mode in Linux. Expected results: vlan tag should not be stripped out in promiscuous mode in Linux as a receiver. Additional info: attaching working logs where packet number 157 and 158 denotes, the vlan tagging is sent and received properly in Linux. with failure kernel, the vlan tagging is removed in Linux kernel.