Cisco CCIE Security v6

Explore perimeter security, intrusion prevention, and Cisco ASA deployment modes with NAT, application inspection, policy based routing, and zone based firewall and NBAR on iOS routers using Cisco Modeling Labs.

Learn how NAT on the Cisco ASA translates inside private networks to outside public addresses, using dynamic and static NAT, alternate and manual configurations, with inside, outside, and DMZ zones.

Explore advanced NAT configurations on a Cisco ASA, covering dynamic and static NAT, port address translation, identity NAT, destination NAT, twice NAT, Proxy ARP, and VPN/DMZ routing scenarios.

Learn to configure application inspection on a firewall with ACLs, class maps, and policy maps to inspect http and dns traffic, enabling protocol checks and tcp intercept features.

Explain traffic zones to manage multihomed outside interfaces, grouping ISP links into an outside zone, applying global policies, and configuring dynamic NAT, ACL, and ICMP inspection for secure server access.

learn policy based routing on a firewall to route traffic by source ip and layer four cues (http/https), enabling isp failover with a dmz design. build access lists, class maps, and route maps to match traffic and set the next hop, then verify with logs and tests.

Apply identity firewall concepts by tying access to usernames and local accounts or LDAP/Active Directory, enabling VPN users to SSH into a DMZ server via ACLs.

Learn how Cisco's application awareness (Nbar) identifies protocols by inspecting inner protocol headers, not ports, using class maps for ICMP and HTTP and setting IP precedence to test recognition.

Define inside and outside zones on iOS routers and apply a zone-based firewall policy to permit inside-to-outside traffic while inspecting and allowing return traffic.

Learn dynamic and static nat on Cisco IOS routers, configure access lists and ip nat pools, translate inside networks to outside addresses, and verify with ping and tcpdump.

Explore detection and mitigation of DoS and DDoS attacks, including UDP floods and TCP SYN floods, and learn null routing, ERSPAN monitoring, and the washing machine approach.

Secure layer two and layer three security with port security, dhcp snooping, dynamic arp inspection, ip source guard, and uRPF to defend against mac, dhcp, and arp spoofing.

Configure high availability through redundancy and failover in Cisco ASA environments, using back-to-back redundant links, link aggregation options, and active-standby firewall units, with stateless vs stateful failover.

Learn how to secure OSPF routing protocols by implementing MD5 authentication, configuring router IDs, networks, and area authentication across devices to prevent tampering and eavesdropping.

learn to configure Cisco ASA for dual-ISP connectivity with primary and backup routes, static routes with metrics, and SLA monitoring to automatically switch traffic and recover.