Cisco Asav Password Is Not

However we do not want all devices in campus or DC to be able ping hosts in the Internet.

The device is a Cisco Adaptive Security Virtual Appliance (ASAv) version 9.6(1) installed on qcow2 Qemu disk.

The ASAv-I provides traffic filtering and inspection services for the campus network and Data Center (DC).

It also connects the campus network and DC to the vIOS-EDGE-I edge router.

In order to lower memory consumption, GNS3 is configured to assign 1536 MB to the ASAv.

The interface eth0 is not connected as we use the inside interfaces for management instead.

The first connected interface is then the interface eth1 that is referred as the interface GigabitEthernet00 in ASAv CLI.

Similarly, the second connected interface eth2 is referred as the GigabitEthernet01 and so on.

Cisco Asav Password Is Not

When ASAv boots up, copy the file coredump.cfg to a disk0 in a privileged exec mode (password is not set).

Then reboot the ASAv and you should be able to manage ASAv via GNS3 console afterwards.

The links connecting ASAv-I to the DC are configured with the interface name SERVER0 and SERVER1.

The link connecting the ASAv-I to the vIOS-EDGE-I router is configured with the interface name OUTSIDE and it has assigned a security level 0.

However traffic initialized from the interface with a lower security level is not passed to the interface with a higher security level.

For this reason traffic initialized behind the outside interface is passed neither to the inside nor to the server interfaces.

If we need to allow traffic initialized from host connected to the outside interface (level 0) to enter the interfaces with a higher level (100 or 50, in our case), we have to configure an access-list (ACL).

The ACL must explicitly allow particular network traffic (e.g.

TCP, UDP or ICMP) to enter the outside interface.

We can modify an object in one place and have it be reflected in all other places that are referencing it.

The static default route pointing to vIOS-EDGE-I is redistributed to OSPF process.

The first path is via vIOS-Core-I (172.16.0.10) and the second path is via vIOS-Core-II (172.16.0.14).

It is because ECMP is not supported across multiple interfaces, so we cannot define a route to the same destination on a different interface.

However, with zones, we can have up to 8 equal cost static or dynamic routes across up to 8 interfaces within a zone.

To achieve ECMP via two different interfaces, we will create a zone insidezone and assign Gi00 and it Gi01 to this zone.

Without the access-list, vASA does not pass ICMP Echo Reply packets from the interface outside to the interface inside or server.

In this case, the ASAv dynamically allows the corresponding ICMP ECHO Reply to pass through without needing to have access-list.

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