I have recently installed ASA 5520 in network & with my primary configuration it is working fine. But I have littile problem with my remote access VPN.
After connected to vpn I can ping my each server by FQDN and get reply from my LAN private IPs but when I ping to mail server, I get reply from my mail server's public IP and I think that is why I could not use outlook to send/receive mail. A ping sample is below for your info.
Pinging server1.standard-group.com [192.168.112.3] with 32 bytes of data: Reply from 192.168.112.3: bytes=32 time=120ms TTL=128 Reply from 192.168.112.3: bytes=32 time=66ms TTL=128 Request timed out. Reply from 192.168.112.3: bytes=32 time=126ms TTL=128
Ping statistics for 192.168.112.3: Packets: Sent = 4, Received = 3, Lost = 1 (25% loss), Approximate round trip times in milli-seconds: Minimum = 66ms, Maximum = 126ms, Average = 104ms
I guess the mail server internal IP also in the sane range as other servers (192.168.112.x). Please post the ASA running config, if possible. The DNS server is resolving mail1 to public IP. Check if there is any host file entry in the PC/laptop for the mail server. If not, using the same DNS, try to resolve the mail1 from inside of your network. If this still resolves to public IP, then check the DNS server.
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