Date: Sun, 01 Jul 2018 05:38:16 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 229432] 11.2 network em driver - connection link flaps Message-ID: <bug-229432-7501-wGEwIMGT83@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-229432-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-229432-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D229432 Eugene Grosbein <eugen@freebsd.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Open Hardware|i386 |Any CC| |eugen@freebsd.org --- Comment #3 from Eugene Grosbein <eugen@freebsd.org> --- This is known problem with recent changes in our dhclient and its combinati= on with some DHCP servers and em(4) NICs that drop link when driver setups MTU= on the interface. And dhclient now may setup MTU on the interface if DHCP serv= er offers DHCP option 26 (it did not before). As workaround, you can try to add to /etc/dhclient.conf: interface "em0" { supersede interface-mtu 0; } This works for me as 0 is special value meaning that dhclient should not ev= en try to change interface MTU, as it did before. --=20 You are receiving this mail because: You are the assignee for the bug.=
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