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Thank you so much for your fast reply, which is very helpful. There are two kind of certificate(Please see screenshot in attachment). One is identity and another is CA certificate. What is its relation between <b>Identity certificate</b> and <b>CA certificate</b> ? Can we think the identity certificate is self-signed certificate or other ?<br />
<a href="https://filedb.experts-exchange.com/incoming/2015/08_w33/927971/Capture.PNG" target="_blank" class="file-inline" title="Capture.PNG (33 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>Capture.PNG</a>
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Thank you so much for your fast reply, which is very helpful. There are two kind of certificate(Please see screenshot in attachment). One is identity and another is CA certificate. What is its relation between Identity certificate and CA certificate ? Can we think the identity certificate is self-signed certificate or other ?
Capture.PNG [https://filedb.experts-exchange.com/incoming/2015/08_w33/927971/Capture.PNG]

Capture.PNG

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and a mistake in my first comment. verizon did not issue the cisco cert, baltimore did, so baltimore would/should do the verification.
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and a mistake in my first comment. verizon did not issue the cisco cert, baltimore did, so baltimore would/should do the verification.

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Hi When I try to configure ASA through ASDM. I notice there are two certificate in the ASDM -- &nbsp;CA certificate and identity certificate. Anyone can explain the difference between CA certificate and identity &nbsp;certificate ? Thank you
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Hi When I try to configure ASA through ASDM. I notice there are two certificate in the ASDM --  CA certificate and identity certificate. Anyone can explain the difference between CA certificate and identity  certificate ? Thank you

What is difference between CA certificate and identity certificate ?

A virtual private network (VPN) is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or travelling users access to a central organizational network securely. VPNs encapsulate data transfers using secure cryptographic methods and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted.

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).