The tunnel mode has to be set to ipsec ipv4, if not the output would display invalid! and the VPN will not work. You can confirm the source interface, source ip address, destination ip address and the tunnel mode. On the ASA, run the command show interface tunnel 0 will display configuration details of the tunnel interface. Specify a tunnel IP address, source interface, tunnel mode (must be ipsec ipv4), tunnel destination (ip address of the ASA) and tunnel protection (previously defined ipsec profile).Ĭreate a static route to a remote network over the tunnel interface Reference the previously created IPSec Transform Set and IKEv2 Profile crypto ipsec profile IPSEC_PROFILE This must obviously match the algorithms defined in the Transform Set on the ASA.Ĭrypto ipsec transform-set TSET esp-aes 256 esp-sha512-hmac Specify the remote identity (IP address) of the ASA, the local identity that will be sent to the ASA (local router’s public IP address), define authentication method and reference the pre-defined IKEv2 Keyring.ĭefine the encryption and integrity (hashing) algorithms. crypto ikev2 proposal PROP-1Ĭreate an IKEv2 Policy and reference the IKEv2 Proposalĭefine a IKEv2 Keyring and define the pre-shared key This must obviously match the IKEv2 policy defined on the ASA. Route BRANCH1_VTI 10.10.0.0 255.255.0.0 172.16.2.3ĭefine the encryption/integrity/PRF algorithms, DH group and SA lifetime. Tunnel protection ipsec profile IPSEC_PROFILEĬreate static routes to the destination LAN
Specify the tunnel source, destination, ip address and reference the ipsec profile previously created. It is important to ensure you specify the tunnel mode ipsec ipv4, there is no default value unlike on an IOS router which defaults to GRE for encapsulation (ASA’s do not support GRE). Ikev2 local-authentication pre-shared-key Cisco1234Įnsure this is named appropriately. Ikev2 remote-authentication pre-shared-key Cisco1234 Protocol esp integrity sha-512 sha-384 sha-256Ĭreate an IPSec Profile, reference the previously created IPSec Transform SetĬreate a Group Policy and ensure IKEv2 is selected an allowed protocol (IKEv2)Įnsure the Tunnel Group matches the IP address of the Peer device, reference the Group Policy previously created and specify the IKEv2 pre-shared keys (local and remote).
#Cisco asav routing how to
This post will describe the steps on how to configure a VTI between a Cisco ASA Firewall and a Cisco IOS Router.ĪSA Configuration Specify an IKEv2 Policy define the encryption/integrity/PRF algorithms, DH group and SA lifetimeĬreate an IPSec Transform Set, define the encryption and integrity (hashing) algorithms Cisco IOS routers have long supported VTI (sVTI, DVTI, DMVPN, FlexVPN etc). You will find our blog post how to configure nat the cisco and vyos way quite useful.Cisco introduced VTI to ASA Firewalls in version 9.7.1 as an alternative to policy based crypto maps. Thanks for reading our article "how to configure cisco asa 5506-x for internet" today.
Minimum = 169ms, Maximum = 170ms, Average = 169ms Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Īpproximate round trip times in milli-seconds:
#Cisco asav routing free
If you are a beginner, feel free to follow the step by step guide below which explains how to configure Cisco ASA 5506-X for Internet. Connecting the Cisco ASA 5506-X to the internet is not complicated and from your experience on the ASA 5505, the principles are similar.
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