Hi,
Looking at the configuration, everything seems correct. Please verify few things in order to troubleshoot the issue:
1) You mentioned that one side traffic from ASA to Juniper is working, however reverse is not flowing. This mostly occurs due t...
Also go for SHA-2 certificate, since Windows will end SHA-1 support completely by Jan 2017.
http://social.technet.microsoft.com/wiki/contents/articles/32288.windows-enforcement-of-authenticode-code-signing-and-timestamping.aspx
The subnet pool for the VPN Clients (172.18.1.0) is different than the internal subnet (172.16.1.0). So, can you verify if you have the proper routes for the VPN pool subnet?
Please share the configuration of the concentrator as well.