>-----Original Message----- >From: Scott Silverman [mailto:scott.silver...@gmail.com] >Sent: Wednesday, January 26, 2011 11:56 AM >To: e1000-devel@lists.sourceforge.net >Subject: [E1000-devel] Disabling hardware VLAN tag stripping in igb > >Apologies if this gets double posted, but I seem to be having issues >getting this question out to the mailing list. > >Is it possible to turn off hardware VLAN tag stripping, or an >alternative method to expose the full 802.1q header in libpcacp? > >The NIC is connected to a trunk port on a switch, and a vlan interface >is created with vconfig. Sniffing this interface reveals an untagged >frame. If i sniff the base/underlying interface, I do not see any >frames, tagged or untagged. If I remove the vlan interface with >vconfig, and unload the 8021q module, I see the frame untagged. > >I am using kernel 2.6.18-92.1.13.el5.centos.plus and igb 2.4.12 with >an Intel 82576 based Intel NIC > >Thanks, >Scott > >------------------------------------------------------------------------ >------ >Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! >Finally, a world-class log management solution at an even better price- >free! >Download using promo code Free_Logger_4_Dev2Dev. Offer expires >February 28th, so secure your free ArcSight Logger TODAY! >http://p.sf.net/sfu/arcsight-sfd2d >_______________________________________________ >E1000-devel mailing list >E1000-devel@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/e1000-devel >To learn more about Intel® Ethernet, visit >http://communities.intel.com/community/wired
Hello, Quick answer is not easily. The vlan tagging in igb is done by device requirements and features. However, there has been some work in ethtool that was supposed to put this interface in and it was updated in a driver as an example, but not by the Intel driver team. But in my review of the latest upstream version doesn't show it in igb and I find the feature in and out of various versions of ethtool. However, if this is a critical need, let me know the device you are working with and I'll see what I can come up with. Thanks, Carolyn Carolyn Wyborny Linux Development LAN Access Division Intel Corporation ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
