04-03-2012 09:41 PM - edited 03-11-2019 03:50 PM
Hi,
My internet link is connected on Internet Router & below downwards Cisco ASA 5520 is connected.ASA is connected with core switch cisco 4510 on downwards.
our webbased mail url owa.test.com is hosted outside.
Lets suppose ISP pool is 4.4.4.0/28.suppose owa server is Static natted on ASA with 4.4.4.4. my machine traffic is going to internet with same ISP with the help of PAT on Cisco ASA & internet is working on my machine. if i want to access owa.test.com or ip base for mail access, its not working & also it is not pinging. i suppose to ASA is blocking for returning traffic.
is there any way to traffic will go via same Firewal & comeback on same firewall port?
Please help us how to resolve it.
Thanks
Vinod Kumar Gupta
9810966625
04-04-2012 12:01 AM
Hi,
What I understand from your post the situation is the following
If this is the case can you please provide me with the following information
I think you will need the ASA to handle the DNS replies that are coming from a DNS server from the outside network
This would require that you have a "dns" parameter in your "static" nat command for the mail server.
For example likes this (presuming you are running software 8.2 or earlier):
static (inside,outside) 4.4.4.4 x.x.x.x netmask 255.255.255.255 dns
If you are running 8.3 or newe software the same would be
object network MAIL-SERVER
host x.x.x.x
nat (inside,outside) static 4.4.4.4 dns
Hope this helps.
Please rate if it was any of any help
- Jouni
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