Date: Sat, 01 Sep 2018 15:03:53 +0200 From: Marcin Gryszkalis <mg@fork.pl> To: <freebsd-net@freebsd.org> Subject: em, pf - losing tcp traffic Message-ID: <a8416bec-d65d-43ec-ae59-8ab55db5ae5a@fork.pl>
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Hi
I have pretty old gateway that started to behave strange.
Few times a day the lan interface stops receiving tcp and icmp traffic.
With tcpdump I can see arp, dns (udp), rtp over udp, netbios
broadcasts (169.254/16), sip packets - but no tcp and also icmp ping
replies
stop coming.
The only way to fix it is ifconfig down + ifconfig up.
The system is 11.2(amd64).
Card:
em3@pci0:7:0:0: class=0x020000 card=0x002e8086 chip=0x100e8086 rev=0x02
hdr=0x00
vendor = 'Intel Corporation'
device = '82540EM Gigabit Ethernet Controller'
lan0: flags=8947<UP,BROADCAST,DEBUG,RUNNING,PROMISC,SIMPLEX,MULTICAST>
metric 0 mtu 1500
options=209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
ether 00:07:e9:11:24:61
hwaddr 00:07:e9:11:24:61
inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
pf limits are not reached, pf reload or restart doesn't help.
The switch is dummy L2 so it shouldn't be able to recognize udp from tcp.
I don't know what else could I check or try...
Please advise :)
best regards
--
Marcin Gryszkalis, PGP 0xA5DBEEC7 http://fork.pl/gpg.txt
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