Date: Tue, 4 Nov 2008 21:14:02 -0200 From: "J MPZ" <joompz@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: Problems with FreeBSD Message-ID: <e56958de0811041514y16ff6757k5ff696ece0fafa61@mail.gmail.com> In-Reply-To: <4910CCA8.4020704@brianwhalen.net> References: <e56958de0811031643s473b499haa3243de1ed7c278@mail.gmail.com> <490FA51F.7010901@datapipe.com> <e56958de0811040510s494c898fra3ac683392ba2028@mail.gmail.com> <87mygfv9hi.fsf@kobe.laptop> <4910CCA8.4020704@brianwhalen.net>
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YEEEEEEEEEEEESSSSSSSSSSSSSSS!!!
It's work! With the -C option work fine! :-)
Now, what I need to do to use it without -C? Do I need to change some
option?
The ssh was executed on Linux:
Linux (ssh -C host) -> ASA <- Internet -> FreeBSD
Thanks!
2008/11/4 Brian Whalen <brian@brianwhalen.net>
> Giorgos Keramidas wrote:
>
>> On Tue, 4 Nov 2008 11:10:25 -0200, "J MPZ" <joompz@gmail.com> wrote:
>>
>>
>>> Hi Paul,
>>>
>>> When my connections freeze, I open the tcpdump in other terminal. If I
>>> type
>>> something, type "Enter", on the terminal frozen, the tcpdump show
>>> packets,
>>> like that:
>>>
>>> 11:18:45.526256 IP (tos 0x0, ttl 51, id 651, offset 0, flags [DF],
>>> proto:
>>> TCP (6), length: 112) 189.21.230.195.20787 > 201.57.5.2.2264: P
>>> 193:241(48)
>>> ack 0 win 15136 <nop,nop,timestamp 1556398494 745829191,nop,nop,sack 1
>>> {1428:1664}>
>>>
>>>
>> [...]
>>
>>
>>
>>> I'm using: tcpdump -nvvv -i ste0 host REMOTE_IP
>>>
>>>
>>
>> Can you try capturing the connection setup packets, so we can look at
>> the TCP MSS negotiation values? Starting TCPDUMP *before* one of the
>> connections that stall is made should capture that.
>>
>> There may be an intermediate router or firewall that blocks ICMP and
>> ends up breaking path MTU discovery. I've seen TCP connections
>> 'stall' when path-mtu was broken by a setup like this and one of the
>> intermediate routers started dropping TCP packets that were too large
>> for one of its interfaces.
>>
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>>
> Since the result set is so big, something else to try may be invoking the
> ssh connection with compression on, -C is the flag. THis will allow us to
> see if it really isnt working or is just slower than you'd like.
>
> Brian
>
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