Network Security

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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...

titans2011 by Level 1
  • 2981 Views
  • 18 replies
  • 0 Helpful votes

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...

giffordj by Level 1
  • 2484 Views
  • 6 replies
  • 0 Helpful votes

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 ...

giffordj by Level 1
  • 1293 Views
  • 3 replies
  • 0 Helpful votes

I am building 20 pairs of failover firewalls for work and I was wondering from the users of the new code 8.3 - 8.4 if there are anything to watch out for.  I know NAT changes from 8.2x to the newer 8.3 - 8.4 lines but would like to hear about real wo...

I just replaced a PIX 501 with a new ASA5505. I had a very weird problem and would like to know what caused it incase I run into it again.The setup is a DSL connection, with an old-ish speedstream DSL modem. Static IP, no PPPoE. I had a PIX 501, then...

cmonks by Level 1
  • 2784 Views
  • 5 replies
  • 0 Helpful votes

Hello,I have multiple customers and servers behind my ASA5510s.  After moving a new customer with an FTP server behind the firewalls, they immediatly had issues with customers connecting to their FTP server.  I had the default inspection rules runnin...

Hi,I need help to resolve this issue. I am trying to ping from 172.16.0.196 (coming via "acc-network" interface) address to 10.10.40.20. My packets are getting dropped because of that Global NAT rules.What should I do to resolve the issue. I need the...

c.tabassum by Level 1
  • 16717 Views
  • 7 replies
  • 0 Helpful votes

I just upgraded my new ASA5500 firewall IOS to 8.4.1, looking through the Cisco ASA CLI, Cisco has finally provided some USEFUL help without making you jump through so many hoops - FINALLY!!!!!:I am very familiar and already have much experience with...

fsebera by Level 4
  • 897 Views
  • 5 replies
  • 0 Helpful votes
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