On 25 Oct 2007, at 11:24, Anton Yuzhaninov wrote:
I can't connect from FreeBSD 7 box to Solaris 9. While between
FreeBSD6 and Solaris 9 tcp work fine.
I run on FreeBSD, and it nod't work:
$ fetch -o /dev/null http://mail6:8274 fetch: transfer timed out
OS versions:
FreeBSD citrin.rambler.stack.net 7.0-PRERELEASE FreeBSD 7.0-
PRERELEASE #0: Fri Oct 19 00:31:03 MSD 2007
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC amd64
SunOS mail6 5.9 Generic_117172-07 i86pc i386 i86pc
tcpdump on freebsd side:
04:26:28.332895 81.19.65.162.57161 > 81.19.71.6.8274: S [bad tcp
cksum 3038!] 3123015513:3123015513(0) win 65535 <mss
1460,nop,wscale 8,sackOK,timestamp 498561841 0> (DF) (ttl 64, id
27368, len 60, bad cksum 0!)
04:26:28.333213 81.19.71.6.8274 > 81.19.65.162.57161: S [tcp sum
ok] 2890615179:2890615179(0) ack 3123015514 win 33304
<nop,nop,timestamp 622594948 498561841,mss 1460,nop,wscale
1,nop,nop,sackOK> (DF) (ttl 62, id 16035, len 64)
04:26:28.333290 81.19.65.162.57161 > 81.19.71.6.8274: . [bad tcp
cksum 793f!] ack 1 win 260 <nop,nop,timestamp 498561841 622594948>
(DF) (ttl 64, id 27369, len 52, bad cksum 0!)
04:26:28.334892 81.19.65.162.57161 > 81.19.71.6.8274: P [bad tcp
cksum 572f!] 1:88(87) ack 1 win 260 <nop,nop,timestamp 498561843
622594948> (DF) (ttl 64, id 27370, len 139, bad cksum 0!)
04:26:28.335148 81.19.71.6.8274 > 81.19.65.162.57161: . [tcp sum
ok] ack 88 win 33260 <nop,nop,timestamp 622594948 498561843> (DF)
(ttl 62, id 16036, len 52)
snoop in Solaris show same:
1 0.00000 81.19.65.162 -> 81.19.71.6 TCP D=8274 S=57161 Syn
Seq=3123015513 Len=0 Win=65535 Options=<mss 1460,nop,wscale
8,sackOK,tstamp 498561841 0>
2 0.00001 81.19.71.6 -> 81.19.65.162 TCP D=57161 S=8274 Syn
Ack=3123015514 Seq=2890615179 Len=0 Win=33304
Options=<nop,nop,tstamp 622594948 498561841,mss 1460,nop,wscale
1,nop,nop,sackOK>
3 0.00028 81.19.65.162 -> 81.19.71.6 TCP D=8274 S=57161
Ack=2890615180 Seq=3123015514 Len=0 Win=260 Options=<nop,nop,tstamp
498561841 622594948>
4 0.00162 81.19.65.162 -> 81.19.71.6 TCP D=8274 S=57161 Push
Ack=2890615180 Seq=3123015514 Len=87 Win=260
Options=<nop,nop,tstamp 498561843 622594948>
5 0.00003 81.19.71.6 -> 81.19.65.162 TCP D=57161 S=8274
Ack=3123015601 Seq=2890615180 Len=0 Win=33260
Options=<nop,nop,tstamp 622594948 498561843>
With net.inet.tcp.rfc1323=0 tcp work, but it should work with
rfc1323=1 (and in FreeBSD 6 tcp to SunOS work with rfc1323=1).
net.inet.tcp.log_debug=1 and nothing about this connection logged.
As silby@ already pointed out to me, try changing TCP_MAX_WINSHIFT in
src/sys/netinet/tcp.h to 4.
Regards.
--
Rui Paulo
_______________________________________________
freebsd-net@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
