Network Security

All,I have an ASA that I downgraded from 9.1(4) to 9.0(3) for the problem I'm about to describe, and it didn't fix it. Here's the deal: I need to nat over a vpn tunnel. The tunnel works fine, but I cannot ping to/from my internal interface. The nat r...

I have an ASA 5510 8.4(5) in one of my remote offices.  it's got a tunnel back to my main site.the past 2 nights it crashed around 3:00 am and you couldn't do anything but power it off and back on again.I noticed it was externally pingable, so I turn...

I have an ASA5505.  I was in on ASDM and working fine.  I added a new user and seem to locked myself out of ASDM.  Not with I try to access it I get"Identification required. Please select certificate to be used for authentication"The list of certific...

Hi,I have a problem trying to make external web authentication with an ISE server. I am using the following devices and scenary.Foreign-Anchor WLC Scenary:1 WLC  5500 as a Foreign1 WLC 5500 as an Anchor1 Asa 55051 Internet Cisco Router1 ISE as a Ext ...

hi, my topology is ISP 1                        ISP 2   |                                 |Firewall 1 ----------Firewall 2    |                                |    | ___  L3 Switch ___| Both firewalls are connected back to back with same security lev...

Hello,I am looking for help regarding to FTP connection to external FTP server. Client computer is located behind Cisco Firewall and FTP resides in ISP server. So the problem is connecting from our internal network to external networks FTP server.I c...

Hello,I've been thinking of 2 scenarios that could happen and I woud like to be ready.  If a config error was made on our ASA (we have 2 in active/standby mode) what is the best way to recover assuming we have a tftp backup or local flash copy?  I kn...

There is a situation I have a 5515-x handle with version 8.6 and a theme dns when users navigate your website dns resolves public addresses when making this internal users obvimente not reach the site, but from the internet no problem, the dns turn i...

Dear Techies,Following messages are generating on ASA and when it starts generating our VPN client (remote users) failed to pass thourgh IKE phase and VPN client get a message "VPN CLIENT ERROR".We clear all vpn session and also reapply cryto map for...

Hello,I have a PIX firewall with inside, outside, dmz1 and dmz2 interface.nameif ethernet0 outside security0nameif ethernet1 inside security100nameif ethernet2 dmz1 security80nameif ethernet3 dmz2 security70I can run icmp echo request from inside to ...

guysI have a windows NT domain controller and windows NT PC, I want to join the PC to the domain (with a cisco asa 5512-x in between)both the domain controller and NT PC are connected directly to the firewall and on the same security level too (its s...