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Why is Source IP iOutside interface IP of ASA5505

CiscoPurpleBelt
Level 6
Level 6

So I am looking at logs on my ASA5505 in my lab and noticed when doing pings from a host on the Outside interface, the source IP in Real-time log viewer is the Outside interface and not host machine - see attached.

 

Also, I don't see pings on the logs when they are successful only when the are denied is this normal?

3 Replies 3

Hi,
Do you have nat configured?
If you run "debug icmp trace" on the ASA you will be able to see the output of the ping and also the nat translation taking place.

HTH

No that is the weird thing.

ASA# sh nat
ASA#

Also, I am trying to allow internal hosts to the net. It works if I just allow all IP suite, but when just doing http, https, and DNS it doesn't work, logs keep saying the Outside interface denies it on port 53. 

Bluebelt. So you have an access list into your internal interface permitting any from your internal lan. But when you make it morr granular and permit only http it stops working? Can you share config after sanatising. Cheers

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