10-25-2015 06:25 PM - edited 03-05-2019 02:35 AM
Hi all,
I am trying to create an IPsec VPN tunnel from a Cisco ASA 5512 to a Cisco 881.
The local network of the ASA is 192.168.115.0/24
The WAN of the ASA is 220.244.7.134
The remote network of the Cisco 881 is 192.168.118.0/24
The WAN of the Cisco is 14.201.226.170
I have tried checking the encryption, negotiation at lifetime settings and they all seem to be ok but I cant get the tunnel up.
I occasionally get the following messages on the Cisco:
MM_SA_SETUP ACTIVE
MM_NO_STATE ACTIVE (deleted)
But a few seconds it disconnects.
I changed the lifetime on both ends to match, 3600 seconds, but still wouldnt work.
I have attached configs from the Cisco and ASA.
PLEASE could someone identify where I am going wrong?
Thanks
Andy
10-25-2015 06:43 PM
First, you need to decrease your MTU size.
Try both sides and share the result.
Ip mtu 1400
ip tcp adjust-mss 1360
10-26-2015 07:24 PM
Hi,
Thanks for your reply.
I have changed the MTU but this didn't help, it only made my connection drop out.
Thanks anyway
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