ASA 5510, 404 Not Found on ASDM

[Velocity2089]

Hello. I have a Cisco 5510 FW that I am unable to access the ASDM on. I'm new to this company so I'm trying to figure out what is what and what is accessible. At first I wasn't able to get anything to come up when going to the IP address in a browser, but after enabling HTTP and allowing my subnet access to HTTP I get a certificate prompt.

From there, I receive the following:

404 Not Found

The requested URL /admin/public/index.html was not found on this server.

Below is my ASDM image as well as a show ver from the FW:

FIREWALL-ASA# show asdm image
Device Manager image file, disk0:/asdm-625.bin
FIREWALL-ASA#
FIREWALL-ASA#
FIREWALL-ASA# show ver

Cisco Adaptive Security Appliance Software Version 8.2(2)

Compiled on Mon 11-Jan-10 14:19 by builders
System image file is "disk0:/asa822-k8.bin"
Config file at boot was "startup-config"

FIREWALL-ASA up 16 days 0 hours

Hardware:   ASA5510, 1024 MB RAM, CPU Pentium 4 Celeron 1600 MHz
Internal ATA Compact Flash, 256MB
BIOS Flash Firmware Hub @ 0xffe00000, 1024KB

Encryption hardware device : Cisco ASA-55x0 on-board accelerator (revision 0x0)
                             Boot microcode   : CN1000-MC-BOOT-2.00
                             SSL/IKE microcode: CNLite-MC-SSLm-PLUS-2.03
                             IPSec microcode  : CNlite-MC-IPSECm-MAIN-2.04
 0: Ext: Ethernet0/0         : address is 5475.d0d4.7758, irq 9
 1: Ext: Ethernet0/1         : address is 5475.d0d4.7759, irq 9
 2: Ext: Ethernet0/2         : address is 5475.d0d4.775a, irq 9
 3: Ext: Ethernet0/3         : address is 5475.d0d4.775b, irq 9
 4: Ext: Management0/0       : address is 5475.d0d4.7757, irq 11
 5: Int: Not used            : irq 11
 6: Int: Not used            : irq 5

Licensed features for this platform:
Maximum Physical Interfaces    : Unlimited
Maximum VLANs                  : 50
Inside Hosts                   : Unlimited
Failover                       : Disabled
VPN-DES                        : Enabled
VPN-3DES-AES                   : Enabled
Security Contexts              : 0
GTP/GPRS                       : Disabled
SSL VPN Peers                  : 2
Total VPN Peers                : 250
Shared License                 : Disabled
AnyConnect for Mobile          : Disabled
AnyConnect for Cisco VPN Phone : Disabled
AnyConnect Essentials          : Disabled
Advanced Endpoint Assessment   : Disabled
UC Phone Proxy Sessions        : 2
Total UC Proxy Sessions        : 2
Botnet Traffic Filter          : Disabled

This platform has a Base license.

Serial Number: xxxxxxxxxxxx
Running Activation Key: 0xbd3ff55d 0x98c0d6bd 0xfcb14dbc 0x82bc8858 0xc61f04ad
Configuration register is 0x1
Configuration last modified by enable_15 at 06:53:04.759 UTC Thu Sep 4 2014
FIREWALL-ASA#
FIREWALL-ASA#

[rvarelac]

Hi Velocity2089 ,

Try the following commands on your ASA:

FIREWALL-ASA (Config )# http server enable

FIREWALL-ASA (Config )#  http 0.0.0.0 0.0.0.0 outside or inside

(Depends from where you will access the ASA )

And try to access from the browser on the following way :

https://ipASA/admin

Rate helpful post !!

Hope this helps

- Randy -

[Velocity2089]

Hi. Thanks for the reply! Unfortunately still seeing the same result of the 404 Not Found on the firewall. Any thoughts further on that? 

[rvarelac]

Hi , 

Can you try to clean up the cache and web information of the browser  and try again , or try a different browser .

- Randy - 

[Velocity2089]

I tried that and rebooting as well, no luck. 

[rvarelac · Accepted solution]

Hi Velocity2089

That's really weird , as last shoot can you download a new version of ASDM and upload to the ASA.

"asdm image flash:/asdm.bin 

Also check this support forums and compare your configuration. 

https://supportforums.cisco.com/document/102461/how-access-cisco-asa-using-asdm

Pls rate useful post !!

Hope this helps

- Randy -

[Velocity2089]

Hi Randy,

Thanks for the follow up. I'm going to try and add the latest version of ASDM. It looks like it's currently asdm-625.bin.

Do you know if there's a specific upgrade path from a version that old or can I just upload the latest version? 

Thanks!

[rvarelac]

Hi Velocity , 

You can go to the latest. 

Also upgrade your java software on the PC.

Let me know how it goes. If no luck please paste a show run of the  device to help you better. 

Rate helpful post. 

Hope this helps. 

- Randy - 

[Velocity2089]

Could it be possible the ASA needs to be rebooted? 

[Velocity2089]

Hey Randy,

Looks like this worked! Once I flashed on the new ASDM image it came right up. I just then had to create the username for it to be accessed. I could only take it to version 7.1.6 for the time being but this still worked well. 

Thanks again for the help!

Ray

[matthew-vocys]

CiscoASA(config)# http server enable
CiscoASA(config)#
CiscoASA# sho run asdm
asdm image disk0:/asdm-781.bin <--old file is wrong
no asdm history enable
CiscoASA# sho flash
--#-- --length-- -----date/time------ path
100 74369568 Sep 24 2015 03:54:54 asa951-lfbff-k8.spa
101 25025404 Sep 24 2015 03:55:26 asdm-751.bin
102 63 Aug 27 2019 02:03:58 .boot_string
4 4096 Sep 24 2015 03:58:16 log
114 12153 Mar 15 2019 15:40:50 log/asa-appagent.log
12 4096 Sep 24 2015 03:59:08 crypto_archive
103 4096 Dec 31 1979 19:00:00 FSCK0000.REC
104 4096 Dec 31 1979 19:00:00 FSCK0001.REC
13 4096 Sep 24 2015 04:02:26 coredumpinfo
14 59 Sep 24 2015 04:02:26 coredumpinfo/coredump.cfg
105 3137 Jan 21 2016 16:29:12 oldconfig_2016Jan22_0427.cfg
107 82335584 Jan 21 2016 16:32:56 asa952-lfbff-k8.SPA
108 33696792 Aug 27 2019 01:59:04 asdm-7122.bin <-- NEW FILE
109 9703 Jul 08 2017 01:46:20 oldconfig_2017Jul08_0545.cfg
110 104489760 Jul 08 2017 01:49:02 asa981-lfbff-k8.SPA
111 102428144 Aug 27 2019 02:01:38 asa9-12-2-lfbff-k8.SPA

7934787584 bytes total (4289077248 bytes free)
CiscoASA# conf t
CiscoASA(config)# no asdm image disk0:/asdm-781.bin
CiscoASA(config)# asdm image disk0:/asdm-7122.bin
CiscoASA(config)#

[Instate]

For anyone needing this in the future, this is the correct answer, User was trying to boot improperly reference asdm file in flash.

[MichaelJohnson23319]

To whomever finds this page and needed another solution because I had a similar problem.  After an update my configuration was pointing to disk0:/asdm-7151.bin.  Which was the asdm image I was using but I guess after the reboot the disk decided to drop the version number.  What was in the disk0:/ was only 'asdm.bin'. Once I changed what asdm was pointing to in the config aka " config t > asdm image disk0:/asdm.bin > write "  it worked!