I installed Cisco ASDM launcher Ver. 1.4(3) which is offered as a download when you try to login through the web interface of Cisco PIX devices. When you download and install the ASDM from the webpage your getting a local copy of the Java based gui for administering a Cisco PIX security appliance. The problem is after mine installed it would not start and throw up the error message:
Unable to find Java Runtime. Please download and install a Java runtime from Http://www.borland.com/jbuilder/resources/javaruntime.html
After searching and searching for this error I found nothing. I figured the program would read the system wide JAVA_HOME path to find Java. It was not that smart so I finally found out how to configure the program to point to my Java installation.
After doing that ASDM started right up.
Trying to see the MAC address table on a Cisco switch is a pain because issuing the "show ?" command should show you all of the show commands that can be issued. But it looks like its not all of the commands that can be given because at least one does not show up. Even in enable mode the command "show mac-address-table" does not come up. But it's a valid and helpful command. If you want to track down a rougue device that was plugged into your network and find its MAC address to trace it back to the patch panel you need to see the MAC address that are attached to the ports of each switch. If you hit an uplink port of the MAC address you looking for then follow it to the next switch plugged into that switch. Keep doing this until you find the switch that has the MAC address locally and match it to the patch panel.
This is an example of a T1 configuration on a Cisco 2500 with IOS 10.3 (yes I know the router is old as dirt). The router does not have a csu/dsu built in so you will need one to hook the line from the phone company up to. Ask your Internet provider for the line settings of the csu/dsu like framing type (ex. b8zs) and line coding type (ex. ESF).Also you need to see what channel your starting on. If your PBX is going to use 12 of the 24 channels then your csu/dsu needs to start on channel 13. If your using a full T1 then you start a channel 1.
Your Internet provider should also be able to provide the encapsulation type (ex. IETF) and lmi-type (ex. ansi). They will give you a block of IP addresses and tell you what is the gateway for your router. For my example its the serial0 line below. For the internal gateway for your network you will be using another interface. The example uses Ethernet0. The first IP on your block of IP's is usually binded to this interface. This is the gateway for the computers on your network.
This example of course has fake IP's so you'll need to subsitute your own. The config below is output from the "show config" command at a router prompt. But they are also the commands you need to do when you are enabled and in config terminal mode. If anyone wants a better description of this mail me (see the "about" section for the e-mail address) and maby I'll put more detail here.
version 10.3 ! hostname blah.test.org ! enable secret 5 (#$30u34(#(%)@_$%*#!_BIEWQBMX enable password passwordhere ! ip subnet-zero ! interface Ethernet0 ip address 5.5.5.5 255.255.255.128 no ip directed-broadcast ! interface Serial0 description Gateway to Internet provider ip address 4.4.4.4 255.255.255.252 no ip directed-broadcast encapsulation frame-relay IETF no ip route-cache bandwidth 1536 frame-relay lmi-type ansi ! interface Serial1 no ip address shutdown ! ip classless ip route 0.0.0.0 0.0.0.0 4.4.4.3 banner login ^C -=Welcome to the main gateway=- ^C ! line con 0 password passwordhere login line aux 0 transport input all line vty 0 4 password passwordhere login ! end
