Re: kern/43510 (kernel reply TCP-RST for bad checksum TCP-SYN packet)

[Ryo Shimizu <ryo%iij.ad.jp@localhost>]

The following reply was made to PR kern/43510; it has been noted by GNATS.

From: Ryo Shimizu <ryo%iij.ad.jp@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: kern-bug-people%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
        dholland%NetBSD.org@localhost
Subject: Re: kern/43510 (kernel reply TCP-RST for bad checksum TCP-SYN packet)
Date: Thu, 10 Sep 2015 00:48:57 +0900

 >State-Changed-From-To: open->feedback
 >State-Changed-By: dholland%NetBSD.org@localhost
 >State-Changed-When: Tue, 08 Sep 2015 04:53:20 +0000
 >State-Changed-Why:
 >Did the commit (back in may) fix the problem?
 
 I'm sorry for the late response.
 confirmed fixed, thanks!
 
     172.17.4.74# nping --tcp -p 12345 --badsum 172.17.4.65
     Starting Nping 0.6.47 ( http://nmap.org/nping ) at 2015-09-10 00:44 JST
     SENT (0.0145s) TCP 172.17.4.74:32887 > 172.17.4.65:12345 S ttl=64 id=45439 iplen=40  seq=958630331 win=1480 
     SENT (1.0149s) TCP 172.17.4.74:32887 > 172.17.4.65:12345 S ttl=64 id=45439 iplen=40  seq=958630331 win=1480 
     SENT (2.0154s) TCP 172.17.4.74:32887 > 172.17.4.65:12345 S ttl=64 id=45439 iplen=40  seq=958630331 win=1480 
     ^C 
 
     172.17.4.65# uname -a
     NetBSD current 7.99.21 NetBSD 7.99.21 (GENERIC) #0: Wed Sep  9 15:04:14 JST 2015  ryo@moveq:/usr/src/sys/arch/amd64/compile/GENERIC amd64
     172.17.4.65# tcpdump -n -ivmx0 host 172.17.4.74
     tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
     listening on vmx0, link-type EN10MB (Ethernet), capture size 65535 bytes
     00:44:10.564825 IP 172.17.4.74.32887 > 172.17.4.65.12345: Flags [S], seq 958630331, win 1480, length 0
     00:44:11.565459 IP 172.17.4.74.32887 > 172.17.4.65.12345: Flags [S], seq 958630331, win 1480, length 0
     00:44:12.565910 IP 172.17.4.74.32887 > 172.17.4.65.12345: Flags [S], seq 958630331, win 1480, length 0
     ^C
     3 packets captured
     3694 packets received by filter
     0 packets dropped by kernel
 
 --
 ryo shimizu