On 8/26/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Hello... > I've got a strange trouble... > FreeBSD 6.2 amd64 as nat-router: > rl0 85.249.249.249 -> ISP > fxp0 10.0.0.1 -> My Internal Net > natd/ng_nat > ipfw: allow all from any to any > > WinXP client machines work fine behind nat, but WinVista, FreeBSD (5.5/6.2) > clients don't. > It's very strange but it's unable to establish any TCP internet connection > from non WinXP host. ICMP and UDP packets flows normally. > For example, I can ping host ya.ru, get DNS-reply from internet servers, play > games via UDP, but i can't view web pages, open shh session and just can't > "telnet" to any port!!!! > Traffic from/to my net is not filtering by firewalls at all. I've tested it > with natd ang ng_nat - there's no difference! I've tried to solve this > problem during last week =( Unfortunately, i can't. Now i'm going to try > using pf or ipfilter instead of ipfw or ever reinstall server OS and may be > change freebsd architecture to i386. > > Any ideas ?
Could be TCP window scaling. See http://en.wikipedia.org/wiki/TCP_window_scale_option Or the plain old PMTUD problem described in http://www.cisco.com/en/US/tech/tk870/tk877/tk880/technologies_tech_note09186a008011a218.shtml#backinfo =Adriaan= _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
