Network Security

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Hi everyone,ASA 505 is connected to layer 3 switch.ASA is in transparent mode.Layer 3 switch has SVI Vlan 20 and also it has dhcp server for vlan 20.PC connected to transparent switch  is not able to get the IP address from layer switch.I have config...

mahesh18 by Level 6
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  • 4 replies
  • 0 Helpful votes

kindly assist me rgarding this issue i have my router connected to ISP then my router directly connected to my ASA5520....i use also ASA5520 as my DHCP Server and i was wondering with the DHCP Server function of ASA 5520 because if i use the ASA 5520...

Jackong by Level 1
  • 744 Views
  • 3 replies
  • 0 Helpful votes

Hi all,i have security plus ASA  5505ciscoasa(config)# int ?configure mode commands/options:  Ethernet  IEEE 802.3  Vlan      Catalyst Vlansciscoasa# sh firewallFirewall mode: Transparentciscoasa#Verison is 8.2(5)thanksmahesh

mahesh18 by Level 6
  • 1361 Views
  • 1 replies
  • 0 Helpful votes

Hi,I'm trying to confirm the requirements for dns rewrite to work from the inside to a dmz host. The dmz host has a public ip and a private ip of course and has the following object nat object network foohost 10.10.10.10nat (dmz1,outside) static  a.b...

lcaruso by Level 6
  • 915 Views
  • 5 replies
  • 0 Helpful votes

Hello, we had a similar problem (https://supportforums.cisco.com/thread/2148408) before, and it was solved.But since a couple of weeks people are complaining  about disconnections of the RDP sessions, even if they are working, so  is not a timeout se...

gnazer by Level 1
  • 2997 Views
  • 4 replies
  • 0 Helpful votes

Hello Experts,I have an interesting situation that I can't find a Cisco supported configuration for. My customer has a pair of 5520's setup in a failover pair and has two internet connections. The primary ISP has an Adtran router onsite, but the back...

djstrobel by Level 1
  • 1311 Views
  • 2 replies
  • 0 Helpful votes

Hi Everyone,Need to  learn basic thing in ASA  when in multiple context mode.Let says we have given source and destination and we need to open port https on destination ip.I went to switch where source is connected.Then did  sh ip route for source IP...

mahesh18 by Level 6
  • 824 Views
  • 4 replies
  • 0 Helpful votes

I have an old ASA 5505, and I'm having some trouble with Nat Hairpinning. I've done this with other firewalls before and I am having no luck now. I have an internal address that I wish to forward from an external address- so if someone goes to 123.45...

dspahn by Level 1
  • 3939 Views
  • 5 replies
  • 0 Helpful votes

Hello allI have an issue, of two parts. The first part I believe I have figured out, just the second part I am unsure of. I have an ASA 5510, currently, there is a mailserver that is static NAT'ed to one of my ISP routed IPs (not the IP of my main Dy...

                   Hi,Can anyone tell me what the new command is for NAT in version 8.3?The config i have is from Version 7.2 and doesnt work on 8.3global (outside) 1 interfacenat (inside) 1 10.123.74.128 255.255.255.128nat (inside) 1 0.0.0.0 0.0.0.0...