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Cisco ASA 5505

Posted on 2009-05-15
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Last Modified: 2012-05-07
I was wondering if anybody could give me some advice - there will be three servers (web/mail/TS) in a data centre, we are thinking of putting them behind ASA 5505 firewall - there won't be any local users and any VPN connections - all access will be from the outside - I'm comfortable in saying that ASA's 10000 concurrent connection limit would be fine.
As I understand it - ASA's 10 user limit is based on translation table what should be just fine in our case (6 static translations) - the only concern I have is performance.
Can anybody advise on it?

thanks

 
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Question by:rxal
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lkraven earned 250 total points
ID: 24398149
With no VPN in place, the ASA 5505 is capable of an aggregate 150Mbps.  I don't know the size of your uplink to the internet, but I suspect that you will saturate it well before the ASA will hit any bandwidth limitations.

The 10 "user" limit is based on the number of IP addresses behind the firewall, so you won't run into that as an issue either.

Transit time through the ASA 5505 is not much different from any other security appliance-- you will add a hop, but the box itself doesn't add much more latency than other firewall appliances that cost less than $10k.

It seems to me that the ASA is ideally suited for this particular use, IF you want to stay with Cisco.  If not, there are a variety of other good options, Fortinet and Juniper being two I favor, but once it's set up, they'll all be very good choices, the ASA 5505 included.
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by:rxal
ID: 24419794
thanks lkraven - the servers will be on 100MBit/100Mbit uplink what I believe won't be of any problem

By the way are they much different to PIX firewalls in terms of setup?
 

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by:lkraven
ID: 24423839
The ASA CLI continues to get more and more IOS like, but if you are familiar with how the Pix works, it is not very much different.
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by:rxal
ID: 24439667
ok - the more IOS like the better for me as to be honest I didn't like the differences between PIX CLI and Routers CLI - thanks again
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