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Question 251 - 350-801 discussion

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Which action is required for a firewall configuration on a Mobile and Remote Access through Cisco Expressway deployment?

A.

The traversal zone on Expressway-C points to Expressway-E through the peer address field on the traversal zone, which specifies the Expressway-E server address. For dual NIC deployments, set the Expressway-E address using an FQDN that resolves the IP address of the internal interface

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A.

The traversal zone on Expressway-C points to Expressway-E through the peer address field on the traversal zone, which specifies the Expressway-E server address. For dual NIC deployments, set the Expressway-E address using an FQDN that resolves the IP address of the internal interface

B.

The internal firewall must allow these inbound and outbound connections between Expressway-C and Expressway-E. SIP: HTTPS (tunnelled overSSH between C and E): TCP 2222; TCP 7001; Traversal Media: UDP 2776 to 2777 (or 36000 to 36011 for large VM/appliance): XMPP: TCP 7400.

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B.

The internal firewall must allow these inbound and outbound connections between Expressway-C and Expressway-E. SIP: HTTPS (tunnelled overSSH between C and E): TCP 2222; TCP 7001; Traversal Media: UDP 2776 to 2777 (or 36000 to 36011 for large VM/appliance): XMPP: TCP 7400.

C.

The external firewall must allow these inbound connections to Expressway: SIP: TCP 5061; HTTPS:

TCP 8443: XMPP: TCP 5222; Media: UDP 36002 to 59999.

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C.

The external firewall must allow these inbound connections to Expressway: SIP: TCP 5061; HTTPS:

TCP 8443: XMPP: TCP 5222; Media: UDP 36002 to 59999.

D.

Do not use a shared address for Expressway-E and Expressway-C, as the firewall cannot distinguish between them If static NAT for IP addressing on Expressway-E is used, ensure that any NAT operation on Expressway-C does not resolve the same traffic IP address Shared NAT is not supported.

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D.

Do not use a shared address for Expressway-E and Expressway-C, as the firewall cannot distinguish between them If static NAT for IP addressing on Expressway-E is used, ensure that any NAT operation on Expressway-C does not resolve the same traffic IP address Shared NAT is not supported.

Suggested answer: D
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asked 10/10/2024
Ronald de Groot
40 questions
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