I need some help I have a client changing Internet providors going to AT&T. The working config has an egress out the Fastethernet interface. With the new config we are going out a Serial connection. I have attached the config but after I make the changes I can get VPN working but I lose every third IP packet when I ping anything inside so VPN is very unstable.
The working config is attached.
I have made the following changes
default route to this
ip route 0.0.0.0 0.0.0.0 x.x.138.9
Change the access list to
ip access-group DexMProd in
Applied this to the serial interface
crypto map dexmipsec_crm
Changed the secondary IP on ethernet0/1 to primary and removed the other.
Also aded a route 10.2.1.0 255.255.255.0 fastethernet 0/1
Any help would be huge I cannot figure out why I am having such and issue simply changing the Internet facing IP address.