12-29-2008 05:02 AM - edited 03-04-2019 03:15 AM
Hi all. I understand that cisco1841 firewall function is stateful. But if my cisco 1841 comes without the firewall function enabled, would my 1841 be stateful? Thks in advance.
12-29-2008 05:10 AM
If you mean "stateful" in terms of a stateful firewall then no it wouldn't. You can use access-lists etc.. but these are not stateful in the way the firewall is.
Jon
12-29-2008 06:21 AM
If you don't enable the firewall functionality (ip inspects), then no it's not stateful. If ip inspects are configured on the router, then it becomes stateful.
HTH,
John
12-29-2008 09:36 AM
Hi Jon,
Thks for your reply. Now i understand that routers are normally not stateful compared to firewalls. I realised that if you do not specify any accesslist on your router it would allow all incoming/outgoing traffic. However if you specify the traffic to allow in your access-list it would allow only that traffic and deny the rest. This is quite different from firewall which is implicit deny all by default.
12-29-2008 09:31 AM
I don't know if the 1841 supports this feature, but without the firewall feature set, "Reflexive Access Lists" are stateful.
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