Date: Tue, 29 Jul 2008 20:28:18 -0700 From: "John T. Yocum" <jtyocum@publicmx.com> To: Sam Leffler <sam@freebsd.org> Cc: freebsd-net@freebsd.org Subject: Re: ath using hostap sets MTU to 2290 Message-ID: <20080729202818.70074fchr6x67bgy@www.publicmx.com> In-Reply-To: <488F8060.70600@freebsd.org> References: <20080729114237.45525xviqzjqf9nh@www.publicmx.com> <488F8060.70600@freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Quoting Sam Leffler <sam@freebsd.org>: > John T. Yocum wrote: >> Hello, >> >> I have a system running pfSense, which is built on top of FreeBSD =20 >> 7.0-RELEASE-p3. In the system I have an Atheros wireless card, =20 >> which when I enable hostap, changes it's MTU to 2290. If an =20 >> explanation is listed on a man page, I apologize, I did try =20 >> searching. >> >> Any ideas why this might happen? It doesn't appear to be a pfSense =20 >> issue, as it appears their code actually tries to set the MTU to =20 >> 1500. >> >> Only reason I ask here, is I noticed in my searching on Google, I =20 >> noticed others that aren't running pfSense have their MTU set to =20 >> 2290. > MTU on an 802.11 network is 2290. If you don't want the default =20 > then change it. If you cannot then please provide the exact steps =20 > you take that do not work. > > Sam Thank you, I didn't realize that the default MTU was 2290. At the =20 moment, I am manually changing it to 1500, so I can setup a bridge =20 between wired, and wireless. I'm curious, are there some Atheros cards or chipsets that only =20 support an MTU of 1500? I only ask, as it seems that some people don't =20 need to manually set the MTU to 1500. Thank you, John
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20080729202818.70074fchr6x67bgy>