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 7
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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 3
  • 1046 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 7
  • 1536 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 10
  • 1329 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 • Community Member
  • 3657 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 • Visitor
  • 1656 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 7
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  • 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 • Community Member
  • 4554 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...

Hi there,I am kind of new to firewalls,  someone plz help, lets say my main office and branch office  has same ip subnet ranges and i came to know that ipsec doesnot  work in that situation. what am i supposed to do to make it work. do i have to conf...

dsr_deep1 by • Community Member
  • 3537 Views
  • 6 replies
  • 0 Helpful votes
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