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Get IP Address Automatically - checked
Checking this box - automatically configures the addressing of the instrument. When selected, the
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instrument will first try to obtain an IP address from a DHCP server. If a DHCP server is found, the
DHCP server will assign an IP address, Subnet Mask, and Default Gateway to the instrument. If a
DHCP server is unavailable, the instrument will try to obtain an IP address using AutoIP. AutoIP
automatically assigns an IP address, Subnet Mask, and Default Gateway addresses on networks
that do not have a DHCP server. (The letters DHCP stands for Dynamic Host Configuration Pro-
tocol, a protocol for assigning dynamic IP addresses to devices on a network. With dynamic
addressing, a device can have a different IP address every time it connects to the network.)
Get IP Address Automatically - unchecked
Unchecking this box - allows you to manually configure the addressing of the instrument by enter-
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ing values in the following fields. These fields only appear when Manual is selected. Select Apply
to apply the manually-entered settings.
IP Address - This value is the Internet Protocol (IP) address of the instrument. An IP address is
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required for all IP and TCP/IP communications with the instrument. An IP Address consists of 4
decimal numbers separated by periods. Each decimal number ranges from 0 through 255 with no
leading zeros. Note that the Internet Engineering Task Force reserved the IP address range of
169.254.1.0 to 169.254.254.255 for link-local addressing (auto-IP). Do not assign a manual IP
address within this range.
Subnet Mask - This value is used to enable the instrument to determine if a client IP address is on
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the same local subnet. The same numbering notation applies as for the IP Address. When a client
IP address is on a different subnet, all packets must be sent to the Default Gateway.
Default Gateway - This value is the IP Address of the default gateway that allows the instrument
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to communicate with systems that are not on the local subnet, as determined by the subnet mask
setting. The same numbering notation applies as for the IP Address. A value of 0.0.0.0 indicates
that no default gateway is defined.
DNS server 1 - This field enters the primary address of the DNS server. Contact your LAN admin-
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istrator for server details. The same numbering notation applies as for the IP Address. A value of
0.0.0.0 indicates that no default server is defined.
DNS server 2 - This field enters the secondary address of the DNS server. Contact your LAN admin-
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istrator for server details. The same numbering notation applies as for the IP Address. A value of
0.0.0.0 indicates that no default server is defined.
Dot-notation addresses ("nnn.nnn.nnn.nnn" where "nnn" is a byte value from 0 to 255) must be
expressed with care, as most PC web software interprets byte values with leading zeros as octal
(base 8) numbers. For example, "192.168.020.011" is actually equivalent to decimal "192.168.16.9"
because ".020" is interpreted as "16" expressed in octal, and ".011" as "9". To avoid confusion, use only
decimal values from 0 to 255, with no leading zeros.
Keysight N6705C User's Guide
5 Using the System Functions
193
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