<div>
Can you provide the config on the ASA and a description of how things are connected?
</div>


Can you provide the config on the ASA and a description of how things are connected?

<div>
Sounds like youre making some kinda loop. please provide youre configuration and infra sketch
</div>


Sounds like youre making some kinda loop. please provide youre configuration and infra sketch

<div>
Worked with ISP and they finally admitted to making a change on their new router.
</div>


Worked with ISP and they finally admitted to making a change on their new router.

<div>
<div class="content wysiwyg-content">
I have a client that has Exchange on their server and a Cisco ASA 5505. &nbsp;I have noticed that they lose about 50% or so of their pings when pining the Internet. &nbsp;I have switched out firewalls and that made no difference. &nbsp;I have found that when the NAT statement is removed from the ASA for Exchange, then none of the pings are dropped when pinging the Internet. &nbsp;This same behavior occurs on both firewalls. &nbsp;When a PC with a static IP address from the ISP is hooked directly to the cable modem none of the pings are dropped. &nbsp;I have tried doing NAT 2 different ways, but get the same result. &nbsp;The ISP, Wow! (Used to be Knology), says that the modem needs to be replaced, &nbsp;It was replaced a few days ago.<br />
<br />
I have seen where there have been issues with IP addresses from an ISP. &nbsp;Does anyone else know what could be causing the pings to drop when using NAT?<br />
<br />
Thanks,<br />
<br />
Chris
</div>
</div>


I have a client that has Exchange on their server and a Cisco ASA 5505.  I have noticed that they lose about 50% or so of their pings when pining the Internet.  I have switched out firewalls and that made no difference.  I have found that when the NAT statement is removed from the ASA for Exchange, then none of the pings are dropped when pinging the Internet.  This same behavior occurs on both firewalls.  When a PC with a static IP address from the ISP is hooked directly to the cable modem none of the pings are dropped.  I have tried doing NAT 2 different ways, but get the same result.  The ISP, Wow! (Used to be Knology), says that the modem needs to be replaced,  It was replaced a few days ago.

I have seen where there have been issues with IP addresses from an ISP.  Does anyone else know what could be causing the pings to drop when using NAT?

Thanks,

Chris

Pings lost when adding NAT statement to Cisco ASA 5505

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.