Which step is taken when configuring a Cisco Expressway solution?
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A. B. C. D.B.
Cisco Expressway is a collaboration solution that provides secure access to voice, video, and messaging services for remote and mobile users. When configuring a Cisco Expressway solution, there are several steps that need to be taken, including:
A. Configure the Expressway-E by using a non-traversal server zone. The first step is to configure the Expressway-E by using a non-traversal server zone. This zone is used to define the endpoints that are allowed to connect to the Expressway-E. By creating a non-traversal server zone, you can ensure that only authorized endpoints can access the Expressway-E.
B. Enable static NAT on the Expressway-E only. The second step is to enable static NAT on the Expressway-E only. NAT (Network Address Translation) is used to translate private IP addresses to public IP addresses. By enabling static NAT on the Expressway-E, you can ensure that all traffic from the Expressway-E is translated to a public IP address, which makes it easier to manage and secure.
C. Disable H.323 mode on the Expressway. The third step is to disable H.323 mode on the Expressway. H.323 is a protocol used for video conferencing, but it is an older protocol and can be less secure than newer protocols such as SIP (Session Initiation Protocol). By disabling H.323 mode on the Expressway, you can ensure that only secure protocols are used for video conferencing.
D. Enable H.323 H.460.19 demultiplexing mode on the Expressway. The fourth step is to enable H.323 H.460.19 demultiplexing mode on the Expressway. H.460.19 is a protocol used for firewall traversal, and by enabling H.323 H.460.19 demultiplexing mode on the Expressway, you can ensure that video traffic is routed securely through firewalls.
In summary, when configuring a Cisco Expressway solution, you should configure the Expressway-E by using a non-traversal server zone, enable static NAT on the Expressway-E only, disable H.323 mode on the Expressway, and enable H.323 H.460.19 demultiplexing mode on the Expressway.