![]() ![]() The finished configuration can be copied verbatim from F1 to F2:Īn IPsec transform set establishes the encryption and authentication (HMAC) methods to be employed by the IPsec SAs. For more background on IPsec fundamentals, see my IPsec quick and dirty article.įor simplicity, we'll use a static pre-shared key for ISAKMP authentication (which will be defined in step four).į1(config-isakmp-policy)# authentication pre-shareį1(config-isakmp-policy)# encryption aes-256 ISAKMP is used to establish the initial asymmetrically encrypted channels between the two endpoints so that they can securely negotiate a pair of one-way IPsec security associations (SAs). Here we'll see how to configure a simple L2L VPN as pictured in the below topology in a few simple steps. LAN-to-LAN VPNs are typically used to transparently connect geographically disparate LANs over an untrusted medium (e.g. Today we're going to look at LAN-to-LAN VPNs using the pair of ASA 5505s in the community lab.
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