Hi dears,

=>when I ping from  pc1 to  pc2 ,

the output is :Timeout from pc1

   and : Bundle rejected due to invalid authentication from pc2 

=>When I ping from  pc2 to pc1  the out put is :

Timeout from pc2 and Bundle rejected :bundle has expired  from pc1

I paused ping and then make an other ping , it generates different key(session key ) in both cases.

I think it is authentication issue (if I  am right).How can I troubleshoot this ?

Thanks in advance.