Network Security

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Hello: This may not be the right forum for this, but over the weekend I tried to replace my PIX515e with a new ASA5520.  I got it online and then right away in testing when sending outbound e-mails I got the below NDR.  I use Exchange.  It goes Back ...

HMidkiff by Level 1
  • 533 Views
  • 1 replies
  • 0 Helpful votes

Hi,Is it possible to upgrade image from 4.0(8) to 4.0(12) from application partition using TFTP?failover mode:==========If we upgrade the image first in standby/Active without disconnecting from network, will that impect the production.My worry is if...

Folks,I am trying to use the NAC with WSUS requeriment type but I am experiencing some problems with slowperformance to verify users.I am using Severity mode and some machines have for about 2 minutes to pass trough posture assessment andothers machi...

Resolved! Outside NAT Query

Hi halijenn / experts ,I have configured outside NAT on an ASA so that the traffic is sourced from public IP on the internet to be NATTED to a private IP on the inside.Following is the error Asymmetric NAT rules matched for forward and reverse flows;...

ankurs2008 by Level 1
  • 1979 Views
  • 12 replies
  • 0 Helpful votes

i would like to get some idea for IOS IPS signature update.example currently the router fresh install using IOS-S416-CLI.pkg, IOS category ios_ips in advanced mode, with retired false.Just wonder what if next time download and loading with latest pat...

Hi halijenn / NT / MagnusI have 2 server one on outside and another on inside of the firewall . The issue is that the server on inside (10.251.12.1) is able to communicate the server on outside (10.253.9.14) however the vice-versa is not happening .T...

Hello,I am new to the Cisco model so excuse my lack of wisdom with this product.  I work for a small rural Hospital and we need to FTP a report once a month to a clearing house.  Problem is I can't FTP their site, I can others but not theres.  I was ...

pershingit by Level 1
  • 5202 Views
  • 15 replies
  • 0 Helpful votes

I have setup an inbound ACL on the outside interface  of my router that allows TCP ports 20 and 21 in and I have a CBAC inspect map with FTP specified on the same interface in an outbound direction.  My understanding is that the inspect will check al...

tato386 by Level 6
  • 5559 Views
  • 22 replies
  • 0 Helpful votes

I'm trying to write a regular expression to block files with the extension of .lnk, but I can't get the end of line anchor ($) to work.  So far I've come up with "\.[Ll][Nn][Kk]" and that blocks "test.lnk" but it also blocks "test.lnk.txt".  I tried ...