Juniper JN0-636 Exam With Confidence Using Practice Dumps

The two types of source NAT translations that are supported in this scenario are translation of IPv4 hosts to IPv6 hosts with or without port address translation, and translation of one IPv6 subnet to another IPv6 subnet without port address translation. These are the types of source NAT translations that are supported by the Junos OS for IPv6 NAT. Translation of IPv4 hosts to IPv6 hosts allows IPv4-only hosts to communicate with IPv6-only hosts by changing the source IPv4 address to a corresponding IPv6 address. Port address translation can be optionally enabled to conserve IPv6 addresses by using different port numbers for different sessions. Translation of one IPv6 subnet to another IPv6 subnet allows IPv6 hosts to use a different IPv6 address range for outbound traffic, such as for security or policy reasons. Port address translation is not supported for this type of translation, as IPv6 addresses are abundant and do not need to be conserved. References: Juniper Security, Professional (JNCIP-SEC) Reference Materials source and documents:

• To solve the problem of using the same IPv4 address space as your company, you can identify two neutral IPv4 address spaces for address translation. This will allow you to use the same IPv4 address space as your company without any conflicts. Additionally, you can configure static NAT on the SRX Series devices to ensure that the traffic is properly routed between the two networks.
• Static NAT is a type of network address translation that maps a private IP address to a public IP address on a one-to-one basis. Static NAT is useful when you need to expose a server or device with a private IP address to the Internet or another network with a different IP address range. Static NAT also preserves the original source or destination IP address in the packet header, which can be useful for logging or auditing purposes1.
• Neutral IPv4 address spaces are IP address ranges that are not assigned to any specific organization or entity. They are usually reserved for special purposes, such as private networks, multicast, loopback, or documentation. Neutral IPv4 address spaces can be used for address translation when there is an overlap or conflict between two networks that need to communicate with each other. For example, you can use the 10.0.0.0/8, 172.16.0.0/12, or 192.168.0.0/16 address ranges, which are designated for private use, as neutral IPv4 address spaces for address translation2.

References:

• SRX Getting Started - Configure VPN tunnel for site-to-site connectivity
• SRX & J Series Site-to-Site VPN Configurator
• Resolution Guide – SRX - Troubleshoot Static NAT
• RFC 1918 - Address Allocation for Private Internets

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