All posts in: Cisco ASA

Cisco ASA ASDM in Windows 10

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This error occurred in Windows 10 computer while trying to connect Cisco ASA 5506-x via ASDM. Error: ASDM did not get a response from the ASA in the last 60 seconds. Please check the configuration and your connection and then try again by clicking Refresh. Here are couple of workable solutions in Windows ..

Cisco ASA as DHCP Server for Guest Network

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This is one of the most common deployment where you want Cisco ASA to lease IP address for your wireless Guests. We have a Windows Server in internal network, however for security reason, we want to completely isolate Guest network and do not want an internal server to lease IP address for Guests.Gigabit ..

Create CSR and Install certificate in Cisco ASA Firewall

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Generate CSR via Cisco ASA CLI Commands 1. Before generating a CSR request, you must create a private key [crayon-5bc4670d90687083614205/] 2. Once the private key is created, you will then need to create a trustpoint for your key. This will allow you to generate the DN information for your new CSR. ..

Cisco ASA AnyConnect Configuration and Troubleshooting

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1.Create Network Objects (config)# object network office-subnet subnet 172.20.100.0 255.255.255.0 (config)# object network anyconnect-subnet subnet 192.168.210.0 255.255.255.0 2.Create DHCP Pool for Anyconnect client (config)# ip local pool anyconnect-pool 192.168.210.50-192.168.210.200 mask 255.255.255.0 ..

Static bidirectional NAT on Cisco ASA firewall

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In this configuration, 192.168.100.255 is an SMTP Server that we would like to publish on internet with public IP address 221.200.200.51 and open port tcp/25.  STATIC NAT:  (config)# access-list outside_access_in extended permit tcp any host 192.168.100.235 eq smtp (config)# access-group outside_access_in ..

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Configure IKEv1 Site to Site VPN between Cisco ASAs

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  Step 1: Configure Phase 1 and Phase 2 In ASA of both sides Phase 1: IKE policy In Phase 1, single bi-directional SA (Security Association) is created between VPN peers and is a control channel for Phase-1 keepalives, DH-Key Calculation and Phase-2 SA creation and rekey. ciscoasa(config)# crypto ..

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Configure IKEv2 Site to Site VPN between Cisco ASAs

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We are using the following topology, the most popular one. 2 sites in different geographical location and both have static IP address configured in their ASA firewall. Before we begin, you should also know the advantages of using IKEv2  IKEv2 uses fewer messsages to establish tunnel thus saves bandwidth ..

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