Network Security

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Hi,We have Cisco ASA 5520.Nowadays we are getting one problem that is TCP/UDP connection fluctuating continuously.I am checking in ASDM, suppose now showing total no. of connection 50 within 2 sec it's reaching 3000 and again come back to normal.It's...

somnath21 by Level 1
  • 605 Views
  • 3 replies
  • 0 Helpful votes

The problem occured only once as now after over 120 days of uptime. The ASA crashed and rebooted suddenly. There is something interesting in crashinfo file:[...]Region #12 [0x01543720] from #5 tback F4 dump off 0x4c01543720: cc cc cc cc 69 00 00 00 2...

Having trouble configuring web server in DMZ on ASA 5505 w/ security plus. Can access internal server from web server ok and can vnc to web server but web server can't access internet and internet users can't access web server.

czone51334 by Level 1
  • 1973 Views
  • 15 replies
  • 0 Helpful votes

This is a somewhat broad question, but i am going post it anyway and see if anyone can comment, as i feel it may relate to an incorrect NAT statement. I have a telephone system sitting behind the ASA, which i've NAT'd inbound and outbound to an inter...

Resolved! Windows PPTP VPN

We have one last problem before we go live with our UC 520 demo unit. I've got it set up as the NAT/PAT router on our network, and all seems to be working fine except for PPTP VPN, incoming and outgoing. I can't connect to any of my clients, and I ...

I have IPS 4255 with IOS 5.x,it is monitoring My internet zone traffic. In my event viewer i m seeing few IPs are consider as attack towards my global IP addresses that are not being used in my network. These IPs are spare global IP for future use. A...

I am using a 2811 router with 12.4(15)T5 Advanced IP.When enabling inspection on my HTTP out rule, several common websites do not funcion properly. This is not a problem on our other 2811 routers not using Zone-Based firewall. One example site that c...

I have a client which we connect to through the FWSM, this client now needs to send us some multicast traffic. We currently use multicast traffic heavily inside our network just not through the FWSM....how would I enable our servers to receive multi...

niro by Level 1
  • 470 Views
  • 1 replies
  • 0 Helpful votes

Hi, I want to configure Read-Only and Read-Write String in Firewall 5520. I do not want to use default strings. Please help as I am not getting option for R-O & R-W strings with this model.

Hi, We are using Site to Site Tunnel between India and DC but for last two days we have been experencing outage from DC tunnel and from India all tunnels are well connected and it happens only for 15 to 20 minutes. Can anyone tell me which of the ste...

ray_stone by Level 1
  • 401 Views
  • 2 replies
  • 0 Helpful votes
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