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Where we knew we could pass traffic we wrote up some tests. Where we do not know we are asking the customer and their 3rd parties to confirm.
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Where we knew we could pass traffic we wrote up some tests. Where we do not know we are asking the customer and their 3rd parties to confirm.

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Hi there,<br />
<br />
I'm in the process of upgrading some old firewalls to some new ones. There are some VPNs setup already. The config from the old fw's has been copied to the new ones. I'm going to swap the cables from the relevant interfaces. I'm looking for a way to verify that the VPNs are up and are passing traffic on the new firewalls after I swap the cables. I'm used to having an object-group of hosts. I wanted to develop a list of tests for example ping some host (on the other side of the VPN) or telnet to it on port 22 or 3389. However the VPNs configured on these firewalls match traffic from network to network. I'm not sure what is used across the VPNs as they are customer systems.<br />
<br />
What I've come up with so far:<br />
Use &quot;sh crypto isakmp sa&quot; before and after (but that counts on something generating VPN traffic to bring the tunnel up)<br />
Use the ping command to source the ping from the correct network<br />
Use &quot;sh crypto map&quot;<br />
<br />
I'm not sure what the correct approach is here.
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Hi there,

I'm in the process of upgrading some old firewalls to some new ones. There are some VPNs setup already. The config from the old fw's has been copied to the new ones. I'm going to swap the cables from the relevant interfaces. I'm looking for a way to verify that the VPNs are up and are passing traffic on the new firewalls after I swap the cables. I'm used to having an object-group of hosts. I wanted to develop a list of tests for example ping some host (on the other side of the VPN) or telnet to it on port 22 or 3389. However the VPNs configured on these firewalls match traffic from network to network. I'm not sure what is used across the VPNs as they are customer systems.

What I've come up with so far:
Use "sh crypto isakmp sa" before and after (but that counts on something generating VPN traffic to bring the tunnel up)
Use the ping command to source the ping from the correct network
Use "sh crypto map"

I'm not sure what the correct approach is here.

Correct approach to testing VPNs

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).

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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.

Network design and methodology, also known as network architecture, is the design of a communication network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation. In telecommunication, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated.