<div>
Unless you have a sec plus licence and deploy both interfaces in ISP fail-over mode.<br />
<br />
PL
</div>


Unless you have a sec plus licence and deploy both interfaces in ISP fail-over mode.

PL

<div>
Why would you want to do that? You can establish more than one tunnel on the same interface.
</div>


Why would you want to do that? You can establish more than one tunnel on the same interface.

<div>
<div class="content wysiwyg-content">
Hello,<br />
I have an outside interface with say ip address 185.43.21.115/25<br />
and that is currently being used by an ipsec tunnel.<br />
How do I use another public ip address as an endpoint for an ipsec tunnel on this firewall also?<br />
I can't see to wrap my head around adding an additional IP to the asa.<br />
asa8.4
</div>
</div>


Hello,
I have an outside interface with say ip address 185.43.21.115/25
and that is currently being used by an ipsec tunnel.
How do I use another public ip address as an endpoint for an ipsec tunnel on this firewall also?
I can't see to wrap my head around adding an additional IP to the asa.
asa8.4

additional ipsec tunnel

Internet Protocol Security (IPsec) is a protocol suite for secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session. IPsec includes protocols for establishing mutual authentication between agents at the beginning of the session and negotiation of cryptographic keys to be used during the session. IPsec can be used in protecting data flows between a pair of hosts (host-to-host), between a pair of security gateways (network-to-network), or between a security gateway and a host (network-to-host). IPsec is an end-to-end security scheme operating in the Internet Layer of the Internet Protocol Suite.

Internet Protocol Security

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).