About brettpenza

brettpenza · 11-01-2017

We've got a Cisco 5505 ASA firewall as our keylink to the outside internet (a school of about 600 users). We've had the Cisco 5505 ASA for about 3-4 years, never much problem. Over the past few weeks, we'll have some good days and some bad. On ...

brettpenza · 10-25-2017

I've got a reasonably simple network. All one subnet. 1 Firewall (Cisco ASA 5505), 2 Windows 2008 servers with active directory. All users are sent through to the firewall (10.0.0.1). Unlimited license on the ASA - about 600 people in the buil...

brettpenza · 10-10-2017

We've got a Cisco ASA 5505 firewall in a high school setting. About 600 users internally. The network is usually running fine. However, on Mondays, or this week Tuesday (after a 3 day weekend) the firewall gets very hard to find. Since it is the ...

brettpenza · 04-09-2012

I teach in a High School and we've got about a 300 node MS Windows Network. Two MS2003 File Servers act as my DNS/WINS/DHCP servers. We have been using a WATCHGUARD FIREBOX III to act as the router/gateway between the outside external address and my...

brettpenza · 11-21-2017

Genius Tinashe .. Genius. It took me a while to finally realize it, but this is exactly what is happening. A mobile device has apparently got my Cisco Firewall IP. How did you best get around this? Did you just reconfig the Firewall to something li...

brettpenza · 11-21-2017

All of this info was very , very helpful. But it certainly does appear that the DUPLICATE IP is the true problem. I just checked the arp -a for a client that was working fine : 10.0.0.1 - 44-2b-03 ... which is cisco. A client with no access ...

brettpenza · 11-06-2017

I do appreciate all the assistance here. Unfortunately, we are still not up and running consistently. I have been running show xlate, clear xlate, show conn, clear conn. I have taken suspicious ip's and added them to a group host to block b...

brettpenza · 11-06-2017

I do appreciate all the assistance here. Unfortunately, we are still not up and running consistently. I have been running show xlate, clear xlate, show conn, clear conn. I have taken suspicious ip's and added them to a group host to block b...

brettpenza · 11-04-2017

Yes, I hesitate to say it is all set. It is a funny thing, after 3 or 4 years with smooth service and never a thought other than a very infrequent reboot, these last 3 or 4 weeks have been quite stressful with the whole school getting all bent out o...

Member Since	‎04-09-2012 08:56 AM
Date Last Visited	‎11-21-2017 09:24 AM
Posts	30

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Cisco 5505 ASA- dropping through out the day randomly.

Cisco 2600 sg-26 switches on a network with Cisco 5505.

Cisco ASA 5505-trouble after weekend

cisco asa 5505 basic configuration help needed.

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