Hi Experts,
We've configured Remote Access IPSEC VPN on ASA (9.1). Users are configured to use VPN client. From the various blogs, I see "crypto isakmp nat-traversal"command is required for NAT-T but I don't see any configs relating to NAT-Traversal in ASA. Please assist.
1.Is NAT-T allowed by default in ASA...?
2.Should we need to allow UDP-4500 in Outside Interface ACL...?
ASA # show vpn-sessiondb ra-ikev1-ipsec
Session Type: IKEv1 IPsec
Username : 12345 Index : 10489
Assigned IP : XX.198.175.30 Public IP : XX.242.13.39
Protocol : IKEv1 IPsecOverNatT ---------->>>>
License : Other VPN
Encryption : IKEv1: (1)AES256 IPsecOverNatT: (1)AES128
Hashing : IKEv1: (1)SHA1 IPsecOverNatT: (1)SHA1
Bytes Tx : 40104101 Bytes Rx : 2774721
Group Policy : GroupVPN Tunnel Group : GroupVPN
Login Time : 03:10:53 EDT Sun Oct 21 2018
Duration : 2h:09m:30s
Inactivity : 0h:00m:00s
NAC Result : Unknown
VLAN Mapping : N/A
