09-07-2020 07:54 AM - edited 09-07-2020 08:59 AM
Hi,
I have a Cisco ASA 5525 running ASA version 9.3(3)9.
In the config I have around 17 Inside subinterfaces with Security Level 50, configured on the same port-channel.
Internet is working as it should with the Outside interface set to Security Level 0.
I have created one subinterface in the same port-channel with security level 40 that is supposed to be the DMZ.
As soon as I add an Access Rule on the Interface ACL, it looses outgoing internet connectivity because it looses the access rule "Permit any to any less secure networks". The only thing that works is adding the rule "Permit any any", but that is not what I want.
Also if I only add "Deny any any", other network/interfaces still have access to the DMZ interface...
Please look at the attached image. How can I add working access rules and give internet access to these interfaces?
I have tried using Global ACL, and that works as expected, but outgoing internet traffic is still dropped unless I add "Permit Any Any". Ingoing traffic works as expected.
I can start using global acl instead, but my servers has to be able to initiate internet traffic.
For giving internet access I have tried adding the access rules:
Permit any to outside interface
Permit any to outside IP
Permit any to outside network
Please let me know if you need config file.
Sorry for my bad explanation.
09-07-2020 08:22 AM
Hello,
post the full running configuration of the ASA (sh run).
09-07-2020 08:42 AM - edited 09-07-2020 08:45 AM
Hi,
Attached is the full running configwith dummy global IP's and removed some other things that should not be necessary (cryptomap etc.) and that I didnt bother changing.
Thanks
09-09-2020 04:47 PM
You need to have attention to the different security levels, and confirm if you have a "global" NAT to the outside interface allowing every subnet reach the internet.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide