@Wash, a couple things you can try. Firstly I hope you set the command below on both routers, it cannot work on one side alone. Remove the routers and physically connect the 2 routers wan ports ( use cat6 and may need a cross-over cable ) and test the setup. This way, you know the 1500bytes window is guaranteed and no service provider inbetween. It could be that one of your site is on wimax and the other on fiber thus creating issues for gre. On GRE, think it is 23 or 26bytes.  Also do away with GRE and try out ipsec and see if that brings the tunnels up. A guide to ipsec : http://www.cisco.com/en/US/tech/tk583/tk372/technologies_tech_note09186a0080094203.shtml
 
HTHs. :-)

 
On Mon, Dec 6, 2010 at 11:48 PM, Odhiambo Washington <odhiambo@gmail.com> wrote:


On Mon, Dec 6, 2010 at 7:35 PM, aki <aki275@gmail.com> wrote:
@Wash, wacha watu walale! :-))
 
Ok, to me it seems the problem is with the service providers as your config is pretty straight forward.  There is a work around on this, pls google command : ip tcp adjust-mss 1436 and you may find the answer. HTHs.


@Aki,

It did not solve it still.

Maybe provider has done something that is fscking this:-)



--
Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254733744121/+254722743223
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Damn!!


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