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Cisco ASA 5520 Port Forwarding

ASA Router NAT dhcp firewall

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#1 Netbee



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Posted 26 June 2013 - 09:15 AM

Hi All, 


I am preparing for my CCNA security Exam. I have difficulty with inbound NAT setup. Setup is 


Internet -- > ASA -- > LAN (Inside) -- > Cisco Router (3600) 


I want to forward SSH (customer port 8222) back to cisco router. NAT, ACL on ASA is setup correctly as this works in when I have DHCP server running 

asa inside interface. That is when router picks IP address from ASA ( as it wil have ASA as default gateway) upto this points every thing works Great :) 


Issue is I am moved DHCP server from ASA to Router with ASA as setup to default gateway. I have few other servers on LAN , which picks IP address 

default gateway , port forwarding works for them. 


But as my router interface f0/0 (which connects back to ASA) I have static Ip address. That where it doesn't respond to port forwarding request from 

outside. My understanding is that as there is not default gateway that's why it's failing. 


I have tried to on interface f0/0 to get IP address from local pool but that didn't worked. 


interface f0/0 

ip address pool mypool 


as well as 


ip add dhcp 


but for some reason this interface doesn't my ip address from my pool. I know pool is working fine as other devices get IP address fine from poo. 


Any Help on this would by appreciated. 

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#2 Netbee



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Posted 27 June 2013 - 12:10 AM

I have resolved issue by add following command ip route x.x.x.x 



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#3 sharpdotnet2005



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Posted 21 November 2013 - 04:23 PM


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Also tagged with one or more of these keywords: ASA, Router, NAT, dhcp, firewall

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