Ensure IPs generated are within 100.64/10 range.

[colindean]

100.64.0.0-100.127.0.0 are the valid IPs.

[colindean]

In commotiond, we just use the least significant octets of the MAC
address, and then bitmask those based on whatever subnet gets handed to
the IP generation function (which, even though it's 100.64.0.0/10 by
default, could be anything). So we never generate an address outside of
that subnet, because we start with the unique bits and then mask
everything not in the subnet.

[Protagonistics]

Correction. 100.64.0.0-100.127.255.255 are valid.

What Commotion does is a "modulo operation" so that the 4th segment of the MAC address is converted to fit within that range like so:

01=64, 02=65, 03=66 etc up until 39=127
Once the MAC segment=40 (64 in decimal), the IP address becomes 1 again.

Example: DC:9F:DB:39:05:A8 = 100.127.0.0 and DC:9F:DB:40:05:A8 = 100.64.0.0

This process repeats again until DC:9F:DB:FF:05:A8 which is somewhere in the 60's I believe.

Curiously, Commotion does this INCORRECTLY because it doesn't use 64 as the first converted number and only goes up to 125 as the last number. We can ignore the way they do this and do it the right way.

[jasonkhanlar]

"Correction. 100.64.0.0-100.127.255.255 are valid."

Indeed! This outputs the list of the 4,194,304 valid addresses: # nmap -sL -n 100.64.0.0/10

[colindean]

nmap -sL -n 100.64.0.0/10

That’s a neat trick.

[Protagonistics]

THIS is what the ranges should look like:
100.64.0.0 => DC:9F:DB:00:00:00
100.65.0.0 => DC:9F:DB:01:00:00
100.66.0.0 => DC:9F:DB:02:00:00
100.67.0.0 => DC:9F:DB:03:00:00
100.68.0.0 => DC:9F:DB:04:00:00
100.69.0.0 => DC:9F:DB:05:00:00
100.70.0.0 => DC:9F:DB:06:00:00
100.71.0.0 => DC:9F:DB:07:00:00
100.72.0.0 => DC:9F:DB:08:00:00
100.73.0.0 => DC:9F:DB:09:00:00
100.74.0.0 => DC:9F:DB:0A:00:00
100.75.0.0 => DC:9F:DB:0B:00:00
100.76.0.0 => DC:9F:DB:0C:00:00
100.77.0.0 => DC:9F:DB:0D:00:00
100.78.0.0 => DC:9F:DB:0E:00:00
100.79.0.0 => DC:9F:DB:0F:00:00
100.80.0.0 => DC:9F:DB:10:00:00
100.81.0.0 => DC:9F:DB:11:00:00
100.82.0.0 => DC:9F:DB:12:00:00
100.83.0.0 => DC:9F:DB:13:00:00
100.84.0.0 => DC:9F:DB:14:00:00
100.85.0.0 => DC:9F:DB:15:00:00
100.86.0.0 => DC:9F:DB:16:00:00
100.87.0.0 => DC:9F:DB:17:00:00
100.88.0.0 => DC:9F:DB:18:00:00
100.89.0.0 => DC:9F:DB:19:00:00
100.90.0.0 => DC:9F:DB:1A:00:00
100.91.0.0 => DC:9F:DB:1B:00:00
100.92.0.0 => DC:9F:DB:1C:00:00
100.93.0.0 => DC:9F:DB:1D:00:00
100.94.0.0 => DC:9F:DB:1E:00:00
100.95.0.0 => DC:9F:DB:1F:00:00
100.96.0.0 => DC:9F:DB:20:00:00
100.97.0.0 => DC:9F:DB:21:00:00
100.98.0.0 => DC:9F:DB:22:00:00
100.99.0.0 => DC:9F:DB:23:00:00
100.100.0.0 => DC:9F:DB:24:00:00
100.101.0.0 => DC:9F:DB:25:00:00
100.102.0.0 => DC:9F:DB:26:00:00
100.103.0.0 => DC:9F:DB:27:00:00
100.104.0.0 => DC:9F:DB:28:00:00
100.105.0.0 => DC:9F:DB:29:00:00
100.106.0.0 => DC:9F:DB:2A:00:00
100.107.0.0 => DC:9F:DB:2B:00:00
100.108.0.0 => DC:9F:DB:2C:00:00
100.109.0.0 => DC:9F:DB:2D:00:00
100.110.0.0 => DC:9F:DB:2E:00:00
100.111.0.0 => DC:9F:DB:2F:00:00
100.112.0.0 => DC:9F:DB:30:00:00
100.113.0.0 => DC:9F:DB:31:00:00
100.114.0.0 => DC:9F:DB:32:00:00
100.115.0.0 => DC:9F:DB:33:00:00
100.116.0.0 => DC:9F:DB:34:00:00
100.117.0.0 => DC:9F:DB:35:00:00
100.118.0.0 => DC:9F:DB:36:00:00
100.119.0.0 => DC:9F:DB:37:00:00
100.120.0.0 => DC:9F:DB:38:00:00
100.121.0.0 => DC:9F:DB:39:00:00
100.122.0.0 => DC:9F:DB:3A:00:00
100.123.0.0 => DC:9F:DB:3B:00:00
100.124.0.0 => DC:9F:DB:3C:00:00
100.125.0.0 => DC:9F:DB:3D:00:00
100.126.0.0 => DC:9F:DB:3E:00:00
100.127.0.0 => DC:9F:DB:3F:00:00
100.64.0.0 => DC:9F:DB:40:00:00
100.65.0.0 => DC:9F:DB:41:00:00
100.66.0.0 => DC:9F:DB:42:00:00
100.67.0.0 => DC:9F:DB:43:00:00
100.68.0.0 => DC:9F:DB:44:00:00
100.69.0.0 => DC:9F:DB:45:00:00
100.70.0.0 => DC:9F:DB:46:00:00
100.71.0.0 => DC:9F:DB:47:00:00
100.72.0.0 => DC:9F:DB:48:00:00
100.73.0.0 => DC:9F:DB:49:00:00
100.74.0.0 => DC:9F:DB:4A:00:00
100.75.0.0 => DC:9F:DB:4B:00:00
100.76.0.0 => DC:9F:DB:4C:00:00
100.77.0.0 => DC:9F:DB:4D:00:00
100.78.0.0 => DC:9F:DB:4E:00:00
100.79.0.0 => DC:9F:DB:4F:00:00
100.80.0.0 => DC:9F:DB:50:00:00
100.81.0.0 => DC:9F:DB:51:00:00
100.82.0.0 => DC:9F:DB:52:00:00
100.83.0.0 => DC:9F:DB:53:00:00
100.84.0.0 => DC:9F:DB:54:00:00
100.85.0.0 => DC:9F:DB:55:00:00
100.86.0.0 => DC:9F:DB:56:00:00
100.87.0.0 => DC:9F:DB:57:00:00
100.88.0.0 => DC:9F:DB:58:00:00
100.89.0.0 => DC:9F:DB:59:00:00
100.90.0.0 => DC:9F:DB:5A:00:00
100.91.0.0 => DC:9F:DB:5B:00:00
100.92.0.0 => DC:9F:DB:5C:00:00
100.93.0.0 => DC:9F:DB:5D:00:00
100.94.0.0 => DC:9F:DB:5E:00:00
100.95.0.0 => DC:9F:DB:5F:00:00
100.96.0.0 => DC:9F:DB:60:00:00
100.97.0.0 => DC:9F:DB:61:00:00
100.98.0.0 => DC:9F:DB:62:00:00
100.99.0.0 => DC:9F:DB:63:00:00
100.100.0.0 => DC:9F:DB:64:00:00
100.101.0.0 => DC:9F:DB:65:00:00
100.102.0.0 => DC:9F:DB:66:00:00
100.103.0.0 => DC:9F:DB:67:00:00
100.104.0.0 => DC:9F:DB:68:00:00
100.105.0.0 => DC:9F:DB:69:00:00
100.106.0.0 => DC:9F:DB:6A:00:00
100.107.0.0 => DC:9F:DB:6B:00:00
100.108.0.0 => DC:9F:DB:6C:00:00
100.109.0.0 => DC:9F:DB:6D:00:00
100.110.0.0 => DC:9F:DB:6E:00:00
100.111.0.0 => DC:9F:DB:6F:00:00
100.112.0.0 => DC:9F:DB:70:00:00
100.113.0.0 => DC:9F:DB:71:00:00
100.114.0.0 => DC:9F:DB:72:00:00
100.115.0.0 => DC:9F:DB:73:00:00
100.116.0.0 => DC:9F:DB:74:00:00
100.117.0.0 => DC:9F:DB:75:00:00
100.118.0.0 => DC:9F:DB:76:00:00
100.119.0.0 => DC:9F:DB:77:00:00
100.120.0.0 => DC:9F:DB:78:00:00
100.121.0.0 => DC:9F:DB:79:00:00
100.122.0.0 => DC:9F:DB:7A:00:00
100.123.0.0 => DC:9F:DB:7B:00:00
100.124.0.0 => DC:9F:DB:7C:00:00
100.125.0.0 => DC:9F:DB:7D:00:00
100.126.0.0 => DC:9F:DB:7E:00:00
100.127.0.0 => DC:9F:DB:7F:00:00
100.64.0.0 => DC:9F:DB:80:00:00
100.65.0.0 => DC:9F:DB:81:00:00
100.66.0.0 => DC:9F:DB:82:00:00
100.67.0.0 => DC:9F:DB:83:00:00
100.68.0.0 => DC:9F:DB:84:00:00
100.69.0.0 => DC:9F:DB:85:00:00
100.70.0.0 => DC:9F:DB:86:00:00
100.71.0.0 => DC:9F:DB:87:00:00
100.72.0.0 => DC:9F:DB:88:00:00
100.73.0.0 => DC:9F:DB:89:00:00
100.74.0.0 => DC:9F:DB:8A:00:00
100.75.0.0 => DC:9F:DB:8B:00:00
100.76.0.0 => DC:9F:DB:8C:00:00
100.77.0.0 => DC:9F:DB:8D:00:00
100.78.0.0 => DC:9F:DB:8E:00:00
100.79.0.0 => DC:9F:DB:8F:00:00
100.80.0.0 => DC:9F:DB:90:00:00
100.81.0.0 => DC:9F:DB:91:00:00
100.82.0.0 => DC:9F:DB:92:00:00
100.83.0.0 => DC:9F:DB:93:00:00
100.84.0.0 => DC:9F:DB:94:00:00
100.85.0.0 => DC:9F:DB:95:00:00
100.86.0.0 => DC:9F:DB:96:00:00
100.87.0.0 => DC:9F:DB:97:00:00
100.88.0.0 => DC:9F:DB:98:00:00
100.89.0.0 => DC:9F:DB:99:00:00
100.90.0.0 => DC:9F:DB:9A:00:00
100.91.0.0 => DC:9F:DB:9B:00:00
100.92.0.0 => DC:9F:DB:9C:00:00
100.93.0.0 => DC:9F:DB:9D:00:00
100.94.0.0 => DC:9F:DB:9E:00:00
100.95.0.0 => DC:9F:DB:9F:00:00
100.96.0.0 => DC:9F:DB:A0:00:00
100.97.0.0 => DC:9F:DB:A1:00:00
100.98.0.0 => DC:9F:DB:A2:00:00
100.99.0.0 => DC:9F:DB:A3:00:00
100.100.0.0 => DC:9F:DB:A4:00:00
100.101.0.0 => DC:9F:DB:A5:00:00
100.102.0.0 => DC:9F:DB:A6:00:00
100.103.0.0 => DC:9F:DB:A7:00:00
100.104.0.0 => DC:9F:DB:A8:00:00
100.105.0.0 => DC:9F:DB:A9:00:00
100.106.0.0 => DC:9F:DB:AA:00:00
100.107.0.0 => DC:9F:DB:AB:00:00
100.108.0.0 => DC:9F:DB:AC:00:00
100.109.0.0 => DC:9F:DB:AD:00:00
100.110.0.0 => DC:9F:DB:AE:00:00
100.111.0.0 => DC:9F:DB:AF:00:00
100.112.0.0 => DC:9F:DB:B0:00:00
100.113.0.0 => DC:9F:DB:B1:00:00
100.114.0.0 => DC:9F:DB:B2:00:00
100.115.0.0 => DC:9F:DB:B3:00:00
100.116.0.0 => DC:9F:DB:B4:00:00
100.117.0.0 => DC:9F:DB:B5:00:00
100.118.0.0 => DC:9F:DB:B6:00:00
100.119.0.0 => DC:9F:DB:B7:00:00
100.120.0.0 => DC:9F:DB:B8:00:00
100.121.0.0 => DC:9F:DB:B9:00:00
100.122.0.0 => DC:9F:DB:BA:00:00
100.123.0.0 => DC:9F:DB:BB:00:00
100.124.0.0 => DC:9F:DB:BC:00:00
100.125.0.0 => DC:9F:DB:BD:00:00
100.126.0.0 => DC:9F:DB:BE:00:00
100.127.0.0 => DC:9F:DB:BF:00:00
100.64.0.0 => DC:9F:DB:C0:00:00
100.65.0.0 => DC:9F:DB:C1:00:00
100.66.0.0 => DC:9F:DB:C2:00:00
100.67.0.0 => DC:9F:DB:C3:00:00
100.68.0.0 => DC:9F:DB:C4:00:00
100.69.0.0 => DC:9F:DB:C5:00:00
100.70.0.0 => DC:9F:DB:C6:00:00
100.71.0.0 => DC:9F:DB:C7:00:00
100.72.0.0 => DC:9F:DB:C8:00:00
100.73.0.0 => DC:9F:DB:C9:00:00
100.74.0.0 => DC:9F:DB:CA:00:00
100.75.0.0 => DC:9F:DB:CB:00:00
100.76.0.0 => DC:9F:DB:CC:00:00
100.77.0.0 => DC:9F:DB:CD:00:00
100.78.0.0 => DC:9F:DB:CE:00:00
100.79.0.0 => DC:9F:DB:CF:00:00
100.80.0.0 => DC:9F:DB:D0:00:00
100.81.0.0 => DC:9F:DB:D1:00:00
100.82.0.0 => DC:9F:DB:D2:00:00
100.83.0.0 => DC:9F:DB:D3:00:00
100.84.0.0 => DC:9F:DB:D4:00:00
100.85.0.0 => DC:9F:DB:D5:00:00
100.86.0.0 => DC:9F:DB:D6:00:00
100.87.0.0 => DC:9F:DB:D7:00:00
100.88.0.0 => DC:9F:DB:D8:00:00
100.89.0.0 => DC:9F:DB:D9:00:00
100.90.0.0 => DC:9F:DB:DA:00:00
100.91.0.0 => DC:9F:DB:DB:00:00
100.92.0.0 => DC:9F:DB:DC:00:00
100.93.0.0 => DC:9F:DB:DD:00:00
100.94.0.0 => DC:9F:DB:DE:00:00
100.95.0.0 => DC:9F:DB:DF:00:00
100.96.0.0 => DC:9F:DB:E0:00:00
100.97.0.0 => DC:9F:DB:E1:00:00
100.98.0.0 => DC:9F:DB:E2:00:00
100.99.0.0 => DC:9F:DB:E3:00:00
100.100.0.0 => DC:9F:DB:E4:00:00
100.101.0.0 => DC:9F:DB:E5:00:00
100.102.0.0 => DC:9F:DB:E6:00:00
100.103.0.0 => DC:9F:DB:E7:00:00
100.104.0.0 => DC:9F:DB:E8:00:00
100.105.0.0 => DC:9F:DB:E9:00:00
100.106.0.0 => DC:9F:DB:EA:00:00
100.107.0.0 => DC:9F:DB:EB:00:00
100.108.0.0 => DC:9F:DB:EC:00:00
100.109.0.0 => DC:9F:DB:ED:00:00
100.110.0.0 => DC:9F:DB:EE:00:00
100.111.0.0 => DC:9F:DB:EF:00:00
100.112.0.0 => DC:9F:DB:F0:00:00
100.113.0.0 => DC:9F:DB:F1:00:00
100.114.0.0 => DC:9F:DB:F2:00:00
100.115.0.0 => DC:9F:DB:F3:00:00
100.116.0.0 => DC:9F:DB:F4:00:00
100.117.0.0 => DC:9F:DB:F5:00:00
100.118.0.0 => DC:9F:DB:F6:00:00
100.119.0.0 => DC:9F:DB:F7:00:00
100.120.0.0 => DC:9F:DB:F8:00:00
100.121.0.0 => DC:9F:DB:F9:00:00
100.122.0.0 => DC:9F:DB:FA:00:00
100.123.0.0 => DC:9F:DB:FB:00:00
100.124.0.0 => DC:9F:DB:FC:00:00
100.125.0.0 => DC:9F:DB:FD:00:00
100.126.0.0 => DC:9F:DB:FE:00:00
100.127.0.0 => DC:9F:DB:FF:00:00

[Protagonistics]

This is the script that @mizerydearia created for configuring openwrt to use for IP addresses. Updated by Drew from Zhrodrague

#!/bin/ash
#
# Script written for pittmesh  y sagerdearia
# Updated by drewzhrodague
#



# Check for --listall, otherwise proceed

if [ "$*" = "--listall" ]; then
  mac1=DC
  mac2=9F
  mac3=DB
  mac4=00
  mac5=00
  mac6=00

  ip1=100
  ip2=64
  ip3=0
  ip4=0

  for ip2 in `seq 0 255`;do
    #((ip2s63=ip2-63))
    #((ip2=ip2-63))

    mac4=`echo "obase=16; $ip2" | bc`

#    ((ip2=(ip2+64)%64 + 64))

#    # Adjust ip 2nd octet to cycle through 64-127 four times
#    if [ $ip2 -ge 256 ]; then
#      ((ip2-=192))
#    elif [ $ip2 -ge 192 ]; then
#      ((ip2-=128))
#    elif [ $ip2 -ge 128 ]; then
#      ((ip2-=64))
#    fi
#    ip2=$((ip2 % 64 + 63))

    # Pad with 0 
    if [ ${#mac4} -eq 1 ]; then mac4=0$mac4; fi

#    for ip3 in `seq 255`;do
#      mac5=`echo "obase=16; $ip3" | bc`

#      # Pad with 0 
#      if [ ${#mac5} -eq 1 ]; then mac5=0$mac5; fi

#      for ip4 in `seq 255`;do
#        mac6=`echo "obase=16; $ip4" | bc`

#        # Pad with 0 
#        if [ ${#mac6} -eq 1 ]; then mac6=0$mac6; fi

        # Format IP address
        ip="$ip1.$ip2.$ip3.$ip4"

        # Format MAC address
        mac="$mac1:$mac2:$mac3:$mac4:$mac5:$mac6"

        # Pad with space
        space=`printf '%*s' "$((15 - ${#ip}))"`

        # Output matching IP address and MAC address
        echo "$ip $space=> $mac"
#      done
#    done
  done
  exit
fi

# Proceed if not --listall

# Get # of arguments passed to this script
args=$#

# # of arguments should be 1 or 6
# 1 -> DC:9F:DB:CE:13:57 -or- DC-9F-DB-CE-13-57
# 6 -> DC 9F DB CE 13 57

if [ $args -eq 1 ]; then
  # Split 1 argument into 6 separate arguments, 1 for each octet
  # and pass the 6 arguments to a new instance of this script
  $0 `echo $1 | tr ":-" " "`
  # After the new instance completes, make sure to end this one
  exit
elif [ $args -eq 6 ]; then
  mac1=`echo $1|tr [a-z] [A-Z]`
  mac2=`echo $2|tr [a-z] [A-Z]`
  mac3=`echo $3|tr [a-z] [A-Z]`
  mac4=`echo $4|tr [a-z] [A-Z]`
  mac5=`echo $5|tr [a-z] [A-Z]`
  mac6=`echo $6|tr [a-z] [A-Z]`
else
  echo "Usage: $0 <MAC address>"
  echo "Usage: $0 --listall"
  echo
  echo "examples:"
  echo "  $0 DC:9F:DB:CE:13:57"
  echo "  $0 DC-9F-DB-CE-13-57"
  echo "  $0 DC 9F DB CE 13 57"
  echo "  $0 dc 9f db ce 13 57"

  exit
fi

# Ensure that we are working with the correct large MAC address block
# DC-9F-DB

if [ ! $mac1 = "DC" -o ! $mac2 = "9F" -o ! $mac3 = "DB" ]; then
  echo "Invalid MAC address. Make sure it begins with DC:9F:DB"
  exit
fi

# Convert last three hexadecimal octets to decimal values
ip1=100
ip2=`echo "ibase=16; $mac4" | bc`
ip3=`echo "ibase=16; $mac5" | bc`
ip4=`echo "ibase=16; $mac6" | bc`

# nmap -sL -n 100.64.0.0/10
# DC:9F:DB:01:01:01 - DC:9F:DB:FF:FF:FF
# 100.64.0.0        - 100.127.255.255

#((ip2+=63))

echo "$ip1.$ip2.$ip3.$ip4"
#printf "%x\n" $oct4|tr [a-z] [A-Z]

[colindean]

Can you put that into a preformatted block with three backticks before and after it?

On Feb 4, 2016, 15:41, at 15:41, Adam Longwill notifications@github.com wrote:

This is the script that @mizerydearia created for configuring openwrt
to use for IP addresses. Updated by Drew from Zhrodrague

#!/bin/ash

Script written for pittmesh y sagerdearia

Updated by drewzhrodague

Check for --listall, otherwise proceed

if [ "$*" = "--listall" ]; then
mac1=DC
mac2=9F
mac3=DB
mac4=00
mac5=00
mac6=00

ip1=100
ip2=64
ip3=0
ip4=0

for ip2 in seq 0 255;do
#((ip2s63=ip2-63))
#((ip2=ip2-63))

mac4=echo "obase=16; $ip2" | bc

((ip2=(ip2+64)%64 + 64))

# Adjust ip 2nd octet to cycle through 64-127 four times

if [ $ip2 -ge 256 ]; then

((ip2-=192))

elif [ $ip2 -ge 192 ]; then

((ip2-=128))

elif [ $ip2 -ge 128 ]; then

((ip2-=64))

fi

ip2=$((ip2 % 64 + 63))

Pad with 0

if [ ${#mac4} -eq 1 ]; then mac4=0$mac4; fi

for ip3 in seq 255;do

mac5=echo "obase=16; $ip3" | bc

# Pad with 0

if [ ${#mac5} -eq 1 ]; then mac5=0$mac5; fi

for ip4 in seq 255;do

mac6=echo "obase=16; $ip4" | bc

# Pad with 0

if [ ${#mac6} -eq 1 ]; then mac6=0$mac6; fi

   # Format IP address
   ip="$ip1.$ip2.$ip3.$ip4"

   # Format MAC address
   mac="$mac1:$mac2:$mac3:$mac4:$mac5:$mac6"

   # Pad with space
   space=`printf '%*s' "$((15 - ${#ip}))"`

   # Output matching IP address and MAC address
   echo "$ip $space=> $mac"

done

done

done
exit
fi

Proceed if not --listall

Get # of arguments passed to this script

args=$#

# of arguments should be 1 or 6

1 -> DC:9F:DB:CE:13:57 -or- DC-9F-DB-CE-13-57

6 -> DC 9F DB CE 13 57

if [ $args -eq 1 ]; then

Split 1 argument into 6 separate arguments, 1 for each octet

and pass the 6 arguments to a new instance of this script

$0 echo $1 | tr ":-" " "

After the new instance completes, make sure to end this one

exit
elif [ $args -eq 6 ]; then
mac1=echo $1|tr [a-z] [A-Z]
mac2=echo $2|tr [a-z] [A-Z]
mac3=echo $3|tr [a-z] [A-Z]
mac4=echo $4|tr [a-z] [A-Z]
mac5=echo $5|tr [a-z] [A-Z]
mac6=echo $6|tr [a-z] [A-Z]
else
echo "Usage: $0 "
echo "Usage: $0 --listall"
echo
echo "examples:"
echo " $0 DC:9F:DB:CE:13:57"
echo " $0 DC-9F-DB-CE-13-57"
echo " $0 DC 9F DB CE 13 57"
echo " $0 dc 9f db ce 13 57"

exit
fi

Ensure that we are working with the correct large MAC address block

DC-9F-DB

if [ ! $mac1 = "DC" -o ! $mac2 = "9F" -o ! $mac3 = "DB" ]; then
echo "Invalid MAC address. Make sure it begins with DC:9F:DB"
exit
fi

Convert last three hexadecimal octets to decimal values

ip1=100
ip2=echo "ibase=16; $mac4" | bc
ip3=echo "ibase=16; $mac5" | bc
ip4=echo "ibase=16; $mac6" | bc

nmap -sL -n 100.64.0.0/10

DC:9F:DB:01:01:01 - DC:9F:DB:FF:FF:FF

100.64.0.0 - 100.127.255.255

#((ip2+=63))

echo "$ip1.$ip2.$ip3.$ip4"
#printf "%x\n" $oct4|tr [a-z] [A-Z]

---

Reply to this email directly or view it on GitHub:
#3 (comment)

[Protagonistics]

I tried doing that with no success. I'll try again

On Thu, Feb 4, 2016 at 5:55 PM, Colin Dean notifications@github.com wrote:

Can you put that into a preformatted block with three backticks before and
after it?

On Feb 4, 2016, 15:41, at 15:41, Adam Longwill notifications@github.com
wrote:

This is the script that @mizerydearia created for configuring openwrt
to use for IP addresses. Updated by Drew from Zhrodrague

#!/bin/ash

Script written for pittmesh y sagerdearia

Updated by drewzhrodague

Check for --listall, otherwise proceed

if [ "$*" = "--listall" ]; then
mac1=DC
mac2=9F
mac3=DB
mac4=00
mac5=00
mac6=00

ip1=100
ip2=64
ip3=0
ip4=0

for ip2 in seq 0 255;do
#((ip2s63=ip2-63))
#((ip2=ip2-63))

mac4=echo "obase=16; $ip2" | bc

((ip2=(ip2+64)%64 + 64))

# Adjust ip 2nd octet to cycle through 64-127 four times

if [ $ip2 -ge 256 ]; then

((ip2-=192))

elif [ $ip2 -ge 192 ]; then

((ip2-=128))

elif [ $ip2 -ge 128 ]; then

((ip2-=64))

fi

ip2=$((ip2 % 64 + 63))

Pad with 0

if [ ${#mac4} -eq 1 ]; then mac4=0$mac4; fi

for ip3 in seq 255;do

mac5=echo "obase=16; $ip3" | bc

# Pad with 0

if [ ${#mac5} -eq 1 ]; then mac5=0$mac5; fi

for ip4 in seq 255;do

mac6=echo "obase=16; $ip4" | bc

# Pad with 0

if [ ${#mac6} -eq 1 ]; then mac6=0$mac6; fi

Format IP address

ip="$ip1.$ip2.$ip3.$ip4"

Format MAC address

mac="$mac1:$mac2:$mac3:$mac4:$mac5:$mac6"

Pad with space

space=printf '%*s' "$((15 - ${#ip}))"

Output matching IP address and MAC address

echo "$ip $space=> $mac"

done

done

done
exit
fi

Proceed if not --listall

Get # of arguments passed to this script

args=$#

# of arguments should be 1 or 6

1 -> DC:9F:DB:CE:13:57 -or- DC-9F-DB-CE-13-57

6 -> DC 9F DB CE 13 57

if [ $args -eq 1 ]; then

Split 1 argument into 6 separate arguments, 1 for each octet

and pass the 6 arguments to a new instance of this script

$0 echo $1 | tr ":-" " "

After the new instance completes, make sure to end this one

exit
elif [ $args -eq 6 ]; then
mac1=echo $1|tr [a-z] [A-Z]
mac2=echo $2|tr [a-z] [A-Z]
mac3=echo $3|tr [a-z] [A-Z]
mac4=echo $4|tr [a-z] [A-Z]
mac5=echo $5|tr [a-z] [A-Z]
mac6=echo $6|tr [a-z] [A-Z]
else
echo "Usage: $0 "
echo "Usage: $0 --listall"
echo
echo "examples:"
echo " $0 DC:9F:DB:CE:13:57"
echo " $0 DC-9F-DB-CE-13-57"
echo " $0 DC 9F DB CE 13 57"
echo " $0 dc 9f db ce 13 57"

exit
fi

Ensure that we are working with the correct large MAC address block

DC-9F-DB

if [ ! $mac1 = "DC" -o ! $mac2 = "9F" -o ! $mac3 = "DB" ]; then
echo "Invalid MAC address. Make sure it begins with DC:9F:DB"
exit
fi

Convert last three hexadecimal octets to decimal values

ip1=100
ip2=echo "ibase=16; $mac4" | bc
ip3=echo "ibase=16; $mac5" | bc
ip4=echo "ibase=16; $mac6" | bc

nmap -sL -n 100.64.0.0/10

DC:9F:DB:01:01:01 - DC:9F:DB:FF:FF:FF

100.64.0.0 - 100.127.255.255

#((ip2+=63))

echo "$ip1.$ip2.$ip3.$ip4"
#printf "%x\n" $oct4|tr [a-z] [A-Z]

---

Reply to this email directly or view it on GitHub:
#3 (comment)

—
Reply to this email directly or view it on GitHub
#3 (comment)
.

[colindean]

Fixed.

[jasonkhanlar]

pull request #4

Note: @drewzhrodague's changes haven't been applied.

[jasonkhanlar]

rattle

[jasonkhanlar]

Searching at https://regauth.standards.ieee.org/standards-ra-web/pub/view.html#registries for All MAC (MA-L, MA-M, MA-S) with keyword 'Ubiquiti' (entered in filter textbox below)

In addition to mac addresses beginning with DC-9F-DB I see references to:

Assignment	Assignment Type	Company Name	Company Address
04-18-D6	MA-L	Ubiquiti Networks	91 E. Tasman Dr., San Jose California 95134 US
00-50-C2 (B04000-B04FFF)	IAB	Ubiquiti Networks	91 E Tasman Dr, San Jose CA 95134 US
68-72-51	MA-L	Ubiquiti Networks	91 E. Tasman Dr., San Jose California 95134 US
00-27-22	MA-L	Ubiquiti Networks	91 E Tasman Dr, San Jose CA 95134 US
00-15-6D	MA-L	Ubiquiti Networks Inc.	495 Montague Expwy., Milpitas CA 95035 US
24-A4-3C	MA-L	Ubiquiti Networks, INC	91 E. Tasman Dr., San Jose California 95134 US
F0-9F-C2	MA-L	Ubiquiti Networks, Inc.	2580 Orchard Parkway, San Jose CA 95131 US
44-D9-E7	MA-L	Ubiquiti Networks, Inc.	2580 Orchard Parkway, San Jose CA 95131 US
80-2A-A8	MA-L	Ubiquiti Networks, Inc.	2580 Orchard Parkway, San Jose CA 95131 US
DC-9F-DB	MA-L	Ubiquiti Networks, Inc.	2580 Orchard Parkway, San Jose CA 95131 US

[colindean]

Yeah. The HTML version of the calculator generates IPs for all of those ranges. Sounds like an enhancement to the Perl and Shell versions is in order.