Date: Sat, 23 Jul 2011 17:44:29 +0000 From: Dmitriy Demidov <dima_bsd@inbox.lv> To: ae@FreeBSD.org, freebsd-net@FreeBSD.org Subject: Re: kern/143939: [ipfw] [em] ipfw nat and em interface rxcsum problem Message-ID: <201107231744.29444.dima_bsd@inbox.lv>
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Hi,
I have tested this config on today's CURRENT, and i do not got any problems with ipfw nat on em.
Looks like problem is solved - UDP traffic is not damaged anymore!
Thanks.
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em0@pci0:2:9:0: class=0x020000 card=0x30138086 chip=0x100e8086 rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82540EM Gigabit Ethernet Controller'
class = network
subclass = ethernet
em0: <Intel(R) PRO/1000 Legacy Network Connection 1.0.3> port 0xa400-0xa43f mem 0xdb200000-0xdb21ffff irq 21 at device 9.0 on pci2
em0: Ethernet address: 00:20:ed:71:45:67
uname -a
FreeBSD celeron 9.0-CURRENT FreeBSD 9.0-CURRENT #0: Sat Jul 23 16:24:58 EEST 2011 root@celeron:/usr/obj/usr/src/sys/GENERIC i386
celeron# ifconfig em0
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
ether 00:20:ed:71:45:67
inet 46.109.209.50 netmask 0xfffff800 broadcast 255.255.255.255
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
celeron# ipfw nat 1 show config
ipfw nat 1 config if em0 log deny_in same_ports reset
celeron# ipfw show
00100 24 3398 allow ip from any to any via lo0
00200 0 0 deny ip from any to 127.0.0.0/8
00300 0 0 deny ip from 127.0.0.0/8 to any
00400 0 0 deny ip from any to ::1
00500 0 0 deny ip from ::1 to any
00600 0 0 allow ipv6-icmp from :: to ff02::/16
00700 0 0 allow ipv6-icmp from fe80::/10 to fe80::/10
00800 0 0 allow ipv6-icmp from fe80::/10 to ff02::/16
00900 0 0 allow ipv6-icmp from any to any ip6 icmp6types 1
01000 0 0 allow ipv6-icmp from any to any ip6 icmp6types 2,135,136
01100 918 98707 allow ip from any to any via fxp1
01200 339 54933 nat 1 ip from any to any via em0
01300 0 0 deny ip from any to any
65535 0 0 deny ip from any to any
=====================
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