Urgent 4.9 networking problems

[Dave Raven]

Okay thank you I've been so confused with all this that it didn't even occur
to me - its now responding as expected - but I still have my original TCP
problem.. It takes EXTREMELY long to send the first SYN, once its done that
the entire session is perfect...

Anyone at all? Any suggestions on further tests?

Thanks again
Dave

-----Original Message-----
From: Gordon Freeman [mailto:freebsdjunkie at gmail.com] 
Sent: 24 June 2004 11:09 PM
To: Dave Raven
Subject: Re: Urgent 4.9 networking problems


try ping -nR -c1 x.y.186.254

If you don't get the same "lag" then it is your DNS lookup that is
causing the problem.

On Thu, 24 Jun 2004 22:54:10 +0200, Dave Raven <dave at raven.za.net> wrote:
> 
> Hi all,
>         I really need some urgent help with this I'm completely confused.
I
> have a FreeBSD 4.9 machine running ipfilter ipnat vrrp and a few other
> services, today is the first time I tried to access through the specific
> method but now every interface and every local address I try has the same
> problem. I can ping anything - but any other kind of traffic waits for
about
> 2 minutes before transmitting - this is true with tcp and udp. I'm trying
to
> access machines on the same network - and if I ping -R you can see the
same
> effect - pasted below. I've also included the interface that I'm trying to
> do this on although it seems to be happening on all my other interfaces..
> I try to telnet to a cisco router that's on a switch I'm plugged in and I
> see the same behaviour - it just waits then suddenly responds very
quickly.
> My IpFilter rules don't log anything until it responds at which time they
> pass it - and tethereal + tcpdump also see if perfectly AFTER the long
> delay.
> 
> It appears that its sitting on the kernel for 2 minutes??? It just does
> NOTHING then all of a sudden responds. The only thing I can find that
works
> is icmp - and perfectly. I'm sorry for the urgency but its very high
> priority
> 
> Thanks in advance
> Dave
> 
> # ifconfig fxp1
> fxp1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         inet x.y.186.3 netmask 0xffffff00 broadcast x.y.186.255
>         inet x.y.186.1 netmask 0xffffffff broadcast x.y.186.1
>         inet x.y.186.15 netmask 0xffffffff broadcast x.y.186.15
>         inet x.y.186.14 netmask 0xffffffff broadcast x.y.186.14
>         inet x.y.186.142 netmask 0xffffffff broadcast x.y.186.142
>         inet x.y.186.33 netmask 0xffffffff broadcast x.y.186.33
>         inet x.y.186.124 netmask 0xffffffff broadcast x.y.186.124
>         inet x.y.186.250 netmask 0xffffffff broadcast x.y.186.250
>         inet x.y.186.122 netmask 0xffffffff broadcast x.y.186.122
>         inet x.y.186.25 netmask 0xffffffff broadcast x.y.186.25
>         inet x.y.186.127 netmask 0xffffffff broadcast x.y.186.127
> 
> # date ; ping -R -c1 x.y.186.253 ; date
> Thu Jun 24 22:43:13 SAST 2004
> PING x.y.186.253 (152.110.186.253): 56 data bytes
> 64 bytes from x.y.186.253: icmp_seq=0 ttl=255 time=0.414 ms
> RR:     x.y.186.253
>         x.y.186.253
>         x.y.186.3
> 
> --- x.y.186.253 ping statistics ---
> 1 packets transmitted, 1 packets received, 0% packet loss
> round-trip min/avg/max/stddev = 0.414/0.414/0.414/0.000 ms
> Thu Jun 24 22:46:58 SAST 2004
> 
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