Because plain text is awesome, but sometimes cumbersome.

Used by the Dreamhack Network Crew.

The file needs to use tabs for alignment, size 8 is recommended. UTF8 and UNIX line feed are required.

#Name             #Terminator   #Net              #VLAN     #Options
DHTECH-TEST-1     R1            77.80.255.192/26  303       pkg=opsagent;flow=colo
#GW                             77.80.255.193
#$ test.event.dreamhack.se      77.80.255.196               pkg=something

#Name             #Terminator   #Net              #VLAN     #Options
DHTECH-TEST-2     R1            10.20.4.0/24      204       nat=1.2.3.4
#GW                             10.20.4.1
#$ host.tech.dreamhack.local    10.20.4.3                   os=esxi

Each row in the file is either a comment (line starting with #) or a definition of a network. A network definition must always have 5 space-separated columns (many scripts depend on this).

Example:

C01                     D-ASR-V         77.80.128.0/25          301             dhcp;resv=20;sw=abc;int=Te0/2/0/1

C01 is the name of the network, this is an table in hall C, table 1.

D-ASR-V is the Layer 3 terminator of the network, the default gateway.

77.80.128.0/25 is the network with the netmask in CIDR.

301 is the VLANID, all networks have an VLANID in case that is needed, otherwise use -. The IPv6 networks are calculated from the VLANID.

The last column defines special options for the network. The format is option1=value1,value2,value3;option2=value4 and so on. If you dont have any options use none.

Example:

#$ deploy.event.dreamhack.se    77.80.231.70    s=ssh64;c=ldap64,log64;l=tftp64,dhcp64

#$ is used to indicate that this is a host row.

deploy.event.dreamhack.se is the FQDN for the host.

77.80.231.70 is the IPv4 address of the host. IPv6 is generated from this and the network's VLAN ID.

The last column defines special options for the host. The format is option1=value1,value2,value3;option2=value4 and so on. If you dont have any options use none.

All public networks that are free for use shall be commented with: "#-FREE- "

Example:

#-FREE-                                 77.80.166.128/25

All RFC1918 networks that are free for use shall be commented with: "#-FREE-RFC1918 "

Example:

#-FREE-RFC1918                                  10.32.8.0/24