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Check your NAT config. &nbsp;You'll need to update this to reflect your IP change.
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Check your NAT config.  You'll need to update this to reflect your IP change.

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We currently have 1 static public IP in our current config (attached). &nbsp;I have just acquired a new block of 5 IP addresses and I tried switching this over yesterday but I had problems. &nbsp;My new pool of static IP consist &nbsp;of xx.xx.37.153 to xx.xx.37.157 with the gateway being xx.xx.37.158.<br />
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I changed my outside IP to one of the public ip's in the list (ip address xx.xx.37.153 255.255.255.248), I changed the default route statement to point to the new gateway (route outside 0.0.0.0 0.0.0.0 xx.xx.37.158) and I changed my access-lists to reflect the change in IP.<br />
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I would like to NAT using one IP.<br />
<br />
After doing all of this I could only browse the internet if I were directly plugged into the cable modem, but I could not get out behind the ASA.<br />
<br />
What did I do wrong?<br />
<a href="https://filedb.experts-exchange.com/incoming/2009/06_w27/155269/current.txt" target="_blank" class="file-inline" title="Current ASA Config (6 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>current.txt</a>
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current.txt

We currently have 1 static public IP in our current config (attached).  I have just acquired a new block of 5 IP addresses and I tried switching this over yesterday but I had problems.  My new pool of static IP consist  of xx.xx.37.153 to xx.xx.37.157 with the gateway being xx.xx.37.158.

I changed my outside IP to one of the public ip's in the list (ip address xx.xx.37.153 255.255.255.248), I changed the default route statement to point to the new gateway (route outside 0.0.0.0 0.0.0.0 xx.xx.37.158) and I changed my access-lists to reflect the change in IP.

I would like to NAT using one IP.

After doing all of this I could only browse the internet if I were directly plugged into the cable modem, but I could not get out behind the ASA.

What did I do wrong?

ASA config for 5 Static IPs

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.