Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 
Step-by-Step Configuration and Troubleshooting Best Practices for the NGFW, NGIPS and AMP Technologies A Visual Guide to the Cisco Firepower Threat Defense (FTD)
Community Member

Failed to http firewall (pdm) page

Dear sir,

We have an existing 5 ip address that able to http into the pdm page. We try to add in 4 new ip address for http into the pdm page as well. Hereby we applies below steps 1 & 2 to achieve the objective.We try to use 1-4 pc that used the new ip address ,, & to http into the pdm but we not able to login as shown in attachment "can't login.jpg" and prompt up error message as shown below --Java Error--.

Please advise any idea to solve this issue. Thank you very much and appreciation.


Step 1

To identify the IP addresses from which the FWSM accepts HTTPS connections, enter the following command for each address or subnet:

hostname(config)# http source_IP_address mask source_interface

Step 2

To enable the HTTPS server, enter the following command:

hostname(config)# http server enable

For example, to enable the HTTPS server and let a host on the inside interface with an address of access ASDM, enter the following commands:

hostname(config)# http server enable

hostname(config)# http inside

To allow all users on the network to access ASDM on the inside interface, enter the following command:

hostname(config)# http inside


--Java Error--

Java Plug-in 1.6.0_12

Using JRE version 1.6.0_12 Java HotSpot(TM) Client VM

User home directory = C:\Users\user1


c: clear console window

f: finalize objects on finalization queue

g: garbage collect

h: display this help message

l: dump classloader list

m: print memory usage

o: trigger logging

q: hide console

r: reload policy configuration

s: dump system and deployment properties

t: dump thread list

v: dump thread stack

x: clear classloader cache

0-5: set trace level to <n>


load: class not found.


at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)

at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)

at sun.plugin2.applet.Plugin2Manager$ Source)

at Source)

Caused by: open HTTP connection failed:

at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)

at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)

at sun.plugin2.applet.Applet2ClassLoader$ Source)

at Method)

... 7 more

Exception: java.lang.ClassNotFoundException:

CreatePlease to create content