RE: FWX_E_TCP_NOT_SYN_PACKET_Dropped
- From: "josephk" <josephk@xxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 7 Jul 2004 11:21:34 -0700
You can setup different types of ping with "ping" you know.
ping yourmachine -t -l 1500 -f
ping yourmachine -t -l 1440 -f
These will help you determine if your MTU is too large or making it
Though routers. It is my understanding that if one segment requires
Lets say 1000 then all segments will be set to 1000 and then you
Will have various packet fragments being split up.
ping /?
Usage: ping [-t] [-a] [-n count] [-l size] [-f] [-i TTL] [-v TOS]
[-r count] [-s count] [[-j host-list] | [-k host-list]]
[-w timeout] destination-list
Options:
-t Ping the specified host until stopped.
To see statistics and continue - type Control-Break;
To stop - type Control-C.
-a Resolve addresses to hostnames.
-n count Number of echo requests to send.
-l size Send buffer size.
-f Set Don't Fragment flag in packet.
-i TTL Time To Live.
-v TOS Type Of Service.
-r count Record route for count hops.
-s count Timestamp for count hops.
-j host-list Loose source route along host-list.
-k host-list Strict source route along host-list.
-w timeout Timeout in milliseconds to wait for each reply.
Thank you,
Joseph
-----Original Message-----
From: Tiago de Aviz [mailto:Tiago@xxxxxxxxxxxxxxx]
Sent: Wednesday, July 07, 2004 10:14 AM
To: [ISAserver.org Discussion List]
Subject: RES: [isalist] RE: FWX_E_TCP_NOT_SYN_PACKET_Dropped
Yes, i have an access rule that allows it. I can even ping the mainframe. I'm
trying to reduce the MTU to see if it solves the problem.
Thanks!!
Tiago de Aviz
-----Mensagem original-----
De: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx]
Enviada: qua 7/7/2004 14:06
Para: [ISAserver.org Discussion List]
Cc:
Assunto: [isalist] RE: FWX_E_TCP_NOT_SYN_PACKET_Dropped
http://www.ISAserver.org
Hi Tiago,
Do you have an access rule allowing the connection?
Tom
www.isaserver.org/shinder <http://www.isaserver.org/shinder>
Get the book!
Tom and Deb Shinder's Configuring ISA Server 2004
http://tinyurl.com/3xqb7 <http://tinyurl.com/3xqb7>
MVP -- ISA Firewalls
-----Original Message-----
From: Tiago de Aviz [mailto:Tiago@xxxxxxxxxxxxxxx]
Sent: Wednesday, July 07, 2004 12:06 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] FWX_E_TCP_NOT_SYN_PACKET_Dropped
http://www.ISAserver.org
Hello all,
i'm getting this error when i'm trying to access a Telnet
server (3270 terminal emulation). The server is behind a router that I have
here connected in my internal network.The route to reach the mainframe is
configured in my RRAS on the ISA Server. I saw a forum that tom said this could
be a connection limit issue, so i raised it but it didn't help.
For an example, if I ping the damned thing it answers. But if I
want to telnet it, all my packets are denied and on the status code returned on
the log it tells me that.
By the way, it's an ISA 2004 ;)
Tiago
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