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birdc:tldr:a342d
This command is using the "birdc" utility to display the routing information for a particular network prefix.
Here's a breakdown of the components:
-
birdc
: It refers to the "birdc" command-line utility, which is the control interface for the BIRD (Border Gateway Protocol/OSPF/RIP routing daemon) routing software used in Linux operating systems. -
show route
: This part indicates that we want to display the routing table or routes. -
for ${fd00:-8}
: It specifies the network prefix for which we want to show routes.${fd00:-8}
is a variable that may contain a network prefix. If the variable is not defined, it defaults to the prefix "fd00/8". Thefd00/8
prefix is commonly used for private IPv6 networks. -
all
: This option includes all routes available, regardless of their status.
So, when executed, this command will show the routing information for the specified network prefix (either the one defined by the variable or the default fd00/8
prefix), including all available routes.