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1, Get a config where CBAC is enabled and access-list are applied on the interfaces If the configuration of the CBAC and ACL is wrong then the following steps will show wrong results. Check the configuration of the router before you suggest the followings. 2, Check the “show commands” output 2.1 Check the inspection states […]
November 16, 2010
TOPOLOGY: Requirements 1, Layer 3-4 control Customer wants to inspect the following protocols: icmp dns esmtp https imap* pop3* tcp udp *For IMAP and POP3 customer wants to reset the TCP connection if the client enters a non-protocol command before authentication is complete. 2, Layer 4-7 control Customer wants to deny all kind of services […]
November 14, 2010
Configuring zone-based policy firewall on a cisco IOS router is not as easy. To be able to understand the topology of the configuration I used some colors. The key hierarchy is the following: class-map policy-map zone-pair zone security for interface I used in this small example the following topology: Configuration topology: Router parameters: SW: Cisco […]
itsecworks 
November 23, 2010
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