Solved

asa 5505 ip address/subnet confilct warning

Posted on 2008-06-14
5
270 Views
Last Modified: 2010-04-09
I set my inside interface to the address of 10.0.0.1 255.255.255.0 (this was preconfigured on the old firewall).  When creating the nat (inside) 1 10.0.0.1 255.255.255.0 rule I originally entered '1' at the end of 10.0.0.1.  After I entered in the rule it gave me a warning stating that the IP address and the subnet has a conflit...  Now when I do a 'show run'  I see 'nat (inside) 1 10.0.0.0 255.255.255.0'.  The '1' was replaced with a '0'.  Will this still work?  I know why it did this, however, I'm trying to void re addressing the site...  
0
Comment
Question by:gopher_49
  • 2
  • 2
5 Comments
 
LVL 7

Accepted Solution

by:
naughton earned 250 total points
ID: 21787104
a .1 is invlaid with a 255.255.255.0 subnet -

the Nat command is looking for the network address of the subnet specified i.e. 10.0.0.0 vs 10.0.0.1

it will still work - and the nat command will NAT all traffic int eh 10.0.0.0 /24 subnet.
0
 

Author Comment

by:gopher_49
ID: 21788695
great.  I'll test later this after noon.  I'll get back with you shortly.
0
 
LVL 6

Assisted Solution

by:raptorjb007
raptorjb007 earned 250 total points
ID: 21794327
Naughton is correct, When using the Nat command you need to specify the subnet you want to nat rather than a specific IP.

The following is the correct statement for your listed config.

nat (inside) 1 10.0.0.0 255.255.255.0
0
 
LVL 7

Expert Comment

by:naughton
ID: 21866005
hey gopher_49

how'd you go?
0
 
LVL 6

Expert Comment

by:raptorjb007
ID: 21884322
Any luck?
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Port forwarding 14 151
Connecting to CISCO 4402 WLC 3 32
Palo Alto Networks: View Tunnel packet counts? 2 27
clear arp 1 29
I recently attended Cisco Live! in Las Vegas, a conference that boasted over 28,000 techies in attendance, and a week of hands-on learning hosted by a solid partner with which Concerto goes to market.  Every year, Cisco displays cutting-edge technol…
Concerto Cloud Services, a provider of fully managed private, public and hybrid cloud solutions, announced today it was named to the 20 Coolest Cloud Infrastructure Vendors Of The 2017 Cloud  (http://www.concertocloud.com/about/in-the-news/2017/02/0…
Both in life and business – not all partnerships are created equal. As the demand for cloud services increases, so do the number of self-proclaimed cloud partners. Asking the right questions up front in the partnership, will enable both parties …
As a trusted technology advisor to your customers you are likely getting the daily question of, ‘should I put this in the cloud?’ As customer demands for cloud services increases, companies will see a shift from traditional buying patterns to new…

776 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question