ASA
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ASA interview questions and answers
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ASA interview questions and answers Question 1. What are the ASA security Levels? Answer: In ASA security levels are nothing but the interfaces of firewalls. In the ASA firewall, we have 0 -100 security levels. The security level inside is 100 means it is more trusted. The security level […]
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How to work SSL Handshake
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How to work SSL Handshake –>>> Client initiates by sending a CLIENT HELLO message which contains SSL version that the client supports, in what order the client prefer the versions, Ciphersuits (Cryptographic Algorithms) supported by the client, Random Number. —>> Server will send back a SERVER HELLO message Which contains […]
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SITE to SITE IPSEC VPN PHASE-1 And PHASE-2 Troubleshooting step
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Troubleshooting ———->>> Four most common issue we generally face — –> Phase 1 (ISAKMP) security associations fail –> Phase 2 (IPsec) security associations fail –> VPN Tunnel is established, but not traffic passing through –> Intermittent vpn flapping and disconnection Phase-1 and Phase-2 configuration should be identical of both side […]
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ASA Basic troubleshooting
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AAA debug radius debug tacacs show aaa-server protocol PROTOCOL_NAME test aaa-server Access Control Lists show access-list show run | include ACCESS_LIST_NAME show run object-group show run time-range Application Inspection show conn state STATE_TYPE detail show service-policy Configuring Interfaces show firewall show int show int ip […]
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asa firewall basic configuration
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ASA firewall basic configuration ciscoasa(config)# hostname ASA1 ASA1(config)# interface gi0 ASA1(config-if)# nameif outside INFO: Security level for “outside” set to 0 by default. ASA1(config-if)# ip address 10.1.1.1 255.255.255.0 ASA1(config-if)# no shut ASA1(config-if)# ping 10.1.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds: […]