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Basic ASA IPsec VPN Configuration Examples

Basic ASA IPsec VPN Configuration Examples

For the purposes of this article, the examples will follow the topology shown in Figure 1. Because this article is not about ASA ACLs, it is assumed that ACLs will have existed to allow communications between PC1's network and PC2's network.

Figure 1 Example topology

Table 1 shows the commands that would be used to set up the common configuration elements regardless of whether using IKEv1 or IKEv2.

Table 3: Topology Common Configuration

1

Enter privileged EXEC mode.

asa1>enable

2

Enter global configuration mode.

asa1#configure terminal

3

Enter interface configuration mode.

asa1(config)#interface e0

4

Configure a name for the interface.

asa1(config-if)#nameif inside

5

Configure the security level for the interface.

asa1(config-if)#security-level 100

6

Configure an IP address.

asa1(config-if)#ip address 192.168.1.1 255.255.255.0

7

Enter interface configuration mode.

asa1(config-if)#interface e1

8

Configure a name for the interface.

asa1(config-if)#nameif outside

9

Configure the security level for the interface.

asa1(config-if)#security-level 0

10

Configure an IP address.

asa1(config-if)#ip address 10.10.10.1 255.255.255.0



1

Enter privileged EXEC mode.

asa2>enable

2

Enter global configuration mode.

asa2#configure terminal

3

Enter interface configuration mode.

asa2(config)#interface e0

4

Configure a name for the interface.

asa2(config-if)#nameif inside

5

Configure the security level for the interface.

asa2(config-if)#security-level 100

6

Configure an IP address.

asa2(config-if)#ip address 172.16.1.1 255.255.255.0

7

Enter interface configuration mode.

asa2(config-if)#interface e1

8

Configure a name for the interface.

asa2(config-if)#nameif outside

9

Configure the security level for the interface.

asa2(config-if)#security-level 0

10

Configure an IP address.

asa2(config-if)#ip address 10.10.10.2 255.255.255.0

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