GNS3 Labs: IPsec VPN with NAT across BGP Internet routers: Answers Part 1

GNS3 Topology: https://goo.gl/p7p8pq Get the VPN Config Generator and all my videos as part of a subscription here: https://goo.gl/mJMZGW Cisco documentation: https://goo.gl/hjmdFR For lots more content, visit http://www.davidbombal.com - learn about GNS3, CCNA, Packet Tracer, Python, Ansible and much, much more. VPN Configuration: ====================================================== ! CONFIG FOR: C1 ! ! ====================================================== access-list 100 remark ****** Link to C2 ****** access-list 100 permit ip 10.1.1.0 0.0.0.255 10.1.2.0 0.0.0.255 ! access-list 101 remark ****** NAT ACL ****** access-list 101 deny ip 10.1.1.0 0.0.0.255 10.1.2.0 0.0.0.255 access-list 101 permit ip 10.1.1.0 0.0.0.255 any ! ip nat inside source route-map nonat interface G0/1 overload ! route-map nonat permit 10 match ip address 101 ! crypto isakmp policy 10 hash md5 authentication pre-share encryption 3des group 2 lifetime 86400 ! crypto isakmp key cisco123 address 8.8.11.2 ! crypto ipsec transform-set myset esp-3des esp-md5-hmac mode tunnel ! crypto map mymap 1 ipsec-isakmp description ****** Link to C2 ****** set peer 8.8.11.2 set transform-set myset set pfs group2 match address 100 set security-association lifetime seconds 86400 set security-association lifetime kilobytes 4608000 ! interface G0/1 crypto map mymap ip nat outside ! interface G0/0 ip nat inside !===================================================== ! CONFIG FOR: C2 ! ! ====================================================== access-list 100 remark ****** Link to C1 ****** access-list 100 permit ip 10.1.2.0 0.0.0.255 10.1.1.0 0.0.0.255 ! access-list 101 remark ****** NAT ACL ****** access-list 101 deny ip 10.1.2.0 0.0.0.255 10.1.1.0 0.0.0.255 access-list 101 permit ip 10.1.2.0 0.0.0.255 any ! ip nat inside source route-map nonat interface G0/1 overload ! route-map nonat permit 10 match ip address 101 ! cr