You need to modify ACL that is used for PAT, in which you have to deny traffic from local subnet to VPN remote subnet and permit all the remaining traffic in this ACL.
According to current configuration whole traffic from local LAN subnet gets PATTED to WAN IP address and forwarded to ISP instead of specific traffic going through VPN.
Following are the changes required on ASRouter_Albany Router:
no access-list 1 ! access-list 100 deny ip 192.168.16.0 0.0.0.255 192.168.15.0 0.0.0.255 access-list 100 permit ip 192.168.16.0 0.0.0.255 any ! no ip nat inside source list 1 interface Dialer0 overload ! ip nat inside source list 100 interface Dialer0 overload !
Following are the changes required on ASRouter_Acacia Router:
no ip access-list standard NAT-PERMIT ! ip access-list extended NAT-PERMIT deny ip 192.168.15.0 0.0.0.255 192.168.16.0 0.0.0.255 permit ip 192.168.0.0 0.0.255.255 any ! ip nat inside source list NAT-PERMIT interface Dialer0 overload !
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...