SSL VPN dns 127.0.0.1

imsfckw Posted 10 Jan 2023 18:14

Why does SSL VPN force to send 127.0.0.1 DNS  nameserver?

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Because 127.0.0.1 - 127.255.255.255 are reserved address for loopback purpose this mean any packet sent to any of those address is loopback. This is standard address IPv4 for loopback traffic.

more information about the loopback or reserved IP address please click on the link https://en.wikipedia.org/wiki/Localhost
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Johnbada Lv2Posted 11 Jan 2023 12:17
  
Because 127.0.0.1 - 127.255.255.255 are reserved address for loopback purpose this mean any packet sent to any of those address is loopback. This is standard address IPv4 for loopback traffic.

more information about the loopback or reserved IP address please click on the link https://en.wikipedia.org/wiki/Localhost
Newbie517762 Lv4Posted 11 Jan 2023 12:47
  
The loopback address - 127.0.0.1 is generally known as localhost.
A loopback address is a distinct reserved IP address range that starts from 127.0.0.0 ends at 127.255.255.255 though 127.255.255.255 is the broadcast address for 127.0.0.0/8.
The loopback addresses are built into the IP domain system, enabling devices to transmit and receive the data packets.
jetjetd Lv5Posted 11 Jan 2023 16:50
  
It is used to access the network services that are running on the host via the loopback network interface.
RegiBoy Lv5Posted 11 Jan 2023 18:46
  
127.0.0.1 stands for LOCALHOST. It first find if there were devices listening on Port 53 (DNS). That was a default behavior.
Naomi Lv3Posted 11 Jan 2023 18:51
  
This is a localhost dns.
Jigen87 Lv3Posted 11 Jan 2023 18:54
  
The IP domain system includes loopback addresses, which allow devices to send and receive data packets.
soneosansan Lv3Posted 11 Jan 2023 18:57
  
Because the addresses 127.0.0.1 - 127.255.255.255 are reserved for loopback purposes, any packet delivered to any of those addresses is loopback. This is a normal IPv4 address for loopback communication.
nobitachou Lv2Posted 11 Jan 2023 18:58
  
It is used to connect to the host's network services through the loopback network interface.
Fuji12 Lv3Posted 11 Jan 2023 20:56
  
A loopback address is a separate reserved IP address range beginning at 127.0.0.0 and ending at 127.255.255.255.

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