Network Security

Hi,I have a strange problem with dial in VPN's and Natting from outside to an internal server (SMTP for a Mailserver for example) when both the local network which should be accessible via the VPN and the Mailserver are on the same VLAN.We have sever...

Hi Everyone,I'm just transitioning to a new laptop. What a huge job moving all the files and apps over. I just fired up the Cisco ASDM Launcher and it works perfectly.On my old laptop the ASDM Launcher contained a history of all IP Addresses (and use...

Hello,I currently have the default inspection engine configured in my firewall to inspect http traffic.  I noticed that the ASA will drop packets when visting legitimate websites.  I've tried googling for a workaround but have been unsucsselful.  How...

Hi,We have a setup of FWSMs configured in single mode in 6509 chassis. Both 6509 are configured in VSS.Recently I have upgraded the firmwre from 4.0(3) to 4.1(3).....before upgradation config sync was not having any problem.After upgradation...If any...

Hi,I am having FWSM and one of the context , lets say firewall1.Below are some config in that context:name 10.50.1.1   server_aname 75.24.10.41 public_ipaccess-list internet-in extended permit icmp any any static (inside,internet) public_ip server_a ...

Hello EveryoneRecently, I deoplyed ASA 5520 as our company firewall, everyting was working fine except two main problem I still can not resolve them after I did a lot of research. I hoped someone could help me out or give some ideas.1. DNS rewriting ...

Hello,I'd like to present the following case to the community to see if any member has been facing a similar case.Have a 5510 in Routed mode, simple Static NAT to interface two networks (inside_1 is my private space, and outside_1 the larger intranet...

Hi all. I have a few questions. I am a student. I'm writing a diploma. In its work, using equipment Cisco. I passed the level of CCNA. But I really urgently need to do a layout for my thesis work. Raw data: Cisco Switch 3550, it set up VLAN Router 26...

Any ideas on how to take care of this one. I have checked my NAT statements and nothing out of the ordinary there.May 29 10:56:30 172.16.0.254 gateway %ASA-6-302016: Teardown UDP connection 324026 for internet:66.75.164.90/53 to dmz:10.0.0.50/54442 d...

Hi all,My Scenario is simple Lan, Wan (Two ISP) and DMZ.Can we connect Lan, Wan and DMZ cables on single switch (In small organization).It may be a security compramise.But Is it possible and how?Thnax.............

When I have a computer directly connected to the Cable Modem I get 9.84MB Down and 1MB Up. When I put it behind the ASA 5505 with policing on the interface, I only get 4MB Down and 660Kb Down.What I'm wanting to do is setup this up to enable my VoIP ...

I am having a setup with a 2851 router & websense url filtering server where I need to forward the traffic to websense server for all the internet requests.The http traffic is getting filtered properly, but the https traffic is not getting filtered.T...