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Former Member
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Message 1 of 6

Setting up an alert for logs coming from a CISCO FW for a traffic combination.

Is it possible to set up an alert for logs coming from a cisco FW to sees the following traffic combination in logging line:

%ASA-6-302013: xxx.73.xxx.64 255.255.255.224 to xx.187.x.194 (Built TCP connection)

%ASA-6-302014: xxx73.xxx.64 255.255.255.224 to xx.187.x.194 (Teardown TCP connection)

%ASA-6-302013: xxx73.xxx.64.255.255.255.224 to xx.187.xx195 (Built TCP connection)

%ASA-6-302014: xxx.73.xxx.64 255.255.255.224 to xx.187.x.195 (Teardown TCP connection)

%ASA-6-302013: 1xx.x1x.39.0 255.255.255.224 to xx.187.x.194 (Built TCP connection)

%ASA-6-302014: xxx.18xx.39.0 255.255.255.224 to xx.187.x.194 (Teardown TCP connection)

%ASA-6-302013: xxx,x.39.0 255.255.255.224  to xx187.x.195 (Built TCP connection)

%ASA-6-302014: 1xx.xxx.3.xx 255.255.255.224 to xxx.187.x.195 (Teardown TCP connection)

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sssyyy
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Message 2 of 6

Re: Setting up an alert for logs coming from a CISCO FW for a traffic combination.

should be able to, do it by same destination IP and two signature IDs.

Former Member
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Message 3 of 6

Re: Setting up an alert for logs coming from a CISCO FW for a traffic combination.

Thanks, but how would it look? Which signature IDS?

sssyyy
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Message 4 of 6

Re: Setting up an alert for logs coming from a CISCO FW for a traffic combination.

Not sure what the signature IDs are, but you can find it in event drill down. so, it will be something like:

- with in 10 minutes

- group by source IP

- unique destination IP = 1

- contains signature A and B

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Message 5 of 6

Re: Setting up an alert for logs coming from a CISCO FW for a traffic combination.

Would I need a destination IP?

I am thinking:

New correlation rule

First check for IP range - ( Can I define a subnet range?)

Check for 278-302014

sssyyy
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Message 6 of 6

Re: Setting up an alert for logs coming from a CISCO FW for a traffic combination.

maybe you do. I am not exactly sure what you wanted to do with your correlation rule.

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