#Gns3 asa activeactive failover how to
#Gns3 asa activeactive failover windows

This video demonstrates setting up Active Directory Authentication for Cisco Devices, such as Routers and Switches etc.

Just a quick note to reference the following video on YouTube.

#Gns3 asa activeactive failover windows

We will do this via opening up our network connections/Network Manager, simple click on the ‘+’ sign, select ‘VLAN’ fill in the details on the vlan tab as well as the ‘IPv4Settings’ tab:Ĭisco, AAA, Radius, Active Directory, Windows Server 2012 R2, NAP role, NPS its all going on! The Gui is even easier, lets configure it via the Network Manager. We can now access all of our vlans in question.įurther to this, if we set off a ping to each network and Wireshark the trunk connection we can see our tagged packets. ‘ifconfig vlan10 up’ or ‘ifconfig eth0.10 up’ as below: Save our file restart the networking service and then simply bring up the sub-interfaces with ‘ifconfig XXX up’ where XXX is our subinterface so: The idea is very similar to a cisco router we are essentially sub interfacing our network connection in the interfaces file:Īn alternative configuration for the interfaces file which I have used as well is the following, both work just as well: Lets look at how we would configure Kali to test all hosts in the different vlans, first via CLI and then via GUI in Network Manager:Īs you can see with the current trunk connection we can’t access any of the networks, however a quick Wireshark does reveal we can see traffic and the different vlans…įirst lets open up ‘/etc/network/interfaces’ in nano and add our interfaces. However as a trunked port is presented to the Kali vm, it will be able to communicate to all vlans. The idea of the lab is that vlan 30 can’t talk to vlan 10 or 20. In all switches there are a variety of 802.1q trunked and access ports. All devices in vlan 30 are statically assigned IP addresses and not routable to the 10 and 20 vlan networks. utilising DHCP, vlan 10 for servers and vlan 20 for clients. In the lab we have a ‘router on stick’ configured at R4, fa0/1 is sub interfaced with vlans 10 and 20. 10 and 20 are routable, vlan 30 is isolated from 10 and 20. The below lab is our ‘test.local’ environment set up in GNS3. To setup vlan tagging in Kali Linux 2.0 is pretty straight forward, to set the scene and demonstrate this further we need a lab. If we have a trunk port presented to us, how do we utilise it?

#Gns3 asa activeactive failover how to

Just a quick post on how to configure VLAN tagging in Kali Linux 2.0. Looking further down the information we discover the following:Īnother network interface, is this possibly the internal network and route to DA.? Maybe in the next post…īingo UDP and snmp-check over an SSH tunnel, awesome! We can then simple run snmp-check to localhost. Run up ‘netstat -au’ to verify snmp is listening on the local machine. In second terminal on the attack machine: On the Attack machine we do similar: mkfifo nc -l -u -p 161 /tmp/fifo We begin on the Attack machine by running up the ssh connection, here we are forwarding TCP port 6666 on localhost to TCP 6666 on the remote pivot server: ssh -L 6666:localhost:6666 on the Pivot Server we create a fifo file for netcat to talk too: mkfifo nc -l -p 6666 /tmp/fifo

Its best we see this in the flesh with an example. In essence we are sort of writing the output to a file (without actually writing anything) then sending it on its merry way through netcat via TCP then down the tunnel. Yes I know bit of a brain teaser! You can read more about fifo files here, they are similar to pipe in linux. We are going to do this by sending our local UDP traffic through netcat (handling UDP) into a fifo process back into netcat (handling TCP), through the ssh tunnel then in reverse the other end. This example could also be applied to all sorts of UDP traffic such as DNS for example were we want to tunnel our local DNS requests to a server behind a firewall. Imagine we have earlier identified through cdpsnarf using SSH dynamic port forwarding and proxychains another router, we want to enumerate this further. Our next goal in this case is to try and enumerate SNMP UDP port 161 on target router with a public community string. We will use this server as jump/pivot point for other traffic. The only method of communication into the environment is via SSH to our Ubuntu server. We don’t have access to any other TCP or UDP ports. Our firewall rules are only allowing access into the other side of the firewall to TCP port 22 on a Ubuntu server. In this example we are tunnelling UDP over SSH to circumvent firewall rules on the outside.

Today I will be walking you through how to tunnel snmp-check and other UDP traffic over SSH.