Network Security

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Hi,   I need to redirect traffic destined for port 444 to port 443 on outside interface. Basically same functionality as linux iptables: *nat -A PREROUTING -i eth0 -p tcp -m tcp --dport 444 -j REDIRECT --to-port 443 This is what i did (it's asav983-8...

spokofono by Community Member
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i neet to replace my asa 5515 with asa5516x with firepower. i'm using nat on asa connected outside  to peplink and a have other nat configured on ISP router so i  need to know if the twice nat (1st asa and 2nd on ISP router) can creat any trouble for...

Hello, I have been trying to figure out how to block port 80 from outside my network to a specific server. I want to allow only port 8081 to be accessed. Currently when I setup an access rule to block http it blocks all access to the server from outs...

  This session will provide an opportunity to learn and ask questions about how to troubleshoot issues with the Cisco Adaptive Security Appliance (ASAs), such as crashes, high CPUs, and other common issues. To participate in this event, ask your que...

Monica Lluis by Cisco Employee
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  • 38 replies
  • 0 Helpful votes

I've got a Cisco 5515-X running the latest 6.2.3.2 FTD code.  I'd like to use 4 interfaces for Routed mode traffic to replace an aging ASA 5510 with the old code (DMZ, Inside, Outside, and Failover Interfaces).   I'd like to use the other remaining i...

I was troubleshooting an issue for someone here... Ultimately, I did find the problem, but in the process I uncovered something strange. Can anyone explain to me why the syslog says "Reset-I" but the RST is coming from the outside (as evidence by the...

Screen Shot 2018-09-04 at 10.12.43 AM.png Screen Shot 2018-09-04 at 10.12.53 AM.png
brettp by Level 4
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  • 2 replies
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I am having issues with a port forward for an ASA 5506-x. All of the packet traces run fine, but with I attempt a connection the firewall logs show the following error.   3    Sep 03 2018    00:59:12        174.230.134.101    9631    <<outside IP>>  ...

carmonj by Visitor
  • 2550 Views
  • 7 replies
  • 0 Helpful votes
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