Ok, I will disable vlan_hwtso using
ifconfig -vlanhwtso.
Thanks.
> Try disabling tso at the global level in the kernel. Under some
> circumstances with some drives VLAN_HWTSO -> TSO.
> -Garrett
>
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I am using two lagg interfaces :
lagg0: flags=8843 metric 0 mtu 1500
options=400b8
ether 00:1b:21:55:a7:c4
nd6 options=9
media: Ethernet autoselect
status: active
laggproto lacp
laggport: igb1 flags=1c
laggport: igb0 flags=1c
lagg1: flags=8843 metric 0 mtu 1500
options=400b8
ether 00:1b:21:63:59:c
Then my guess is wrong. I found the message, where similiar problem was
described in ipfw mailling list
http://lists.freebsd.org/pipermail/freebsd-ipfw/2011-March/004582.html, with
no answer.
Maybe it will be usefull for somebody.
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I have the same issue (default gateway unexpectedly changes on some random
address) on FreeBSD 9.0 Box with lot of traffic going through it, I have a
wild guess that it is related to libalias compilled into kernel (troubles
start showing itself when I started to use ipfw nat functionality ).
You may use this patch to ipfw
http://www.freebsd.org/cgi/query-pr.cgi?pr=103454
Or you may use ng_patch netgraph node (man ng_patch(4) should give you some
examples)
The simpliest way to do what you want is pf rule
scrub in on em0 no-df
performance of all those methods you should check by youre