User:Pgmurphy/SecureVLANs

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Details

  • EB2
    • VLAN 455
    • 172.26.0.0/24
    • 256 IP addresses
  • MRC
    • VLAN 456
    • 172.26.1.0/25
    • 128 IP addresses
  • Partners I
    • VLAN 457
    • 172.26.1.128/25
    • 128 IP addresses
  • Poe
    • VLAN 275
    • 172.25.0.128/25
    • 128 IP addresses

Purpose

Private VLANS created for:

  • Cameras
    • PERYTON
    • GRIFFIN
  • Printers
    • ECEPRINT
    • SENTINEL
    • OM
  • LightsOut Management cards
    • All Managed Servers

Setup

Allow 172 VLANS to only communicate (in/out) with:

  • 152.14.98.x
  • 152.1.51.x

Issues

Issues to address:

  1. Research machines in the server rooms
  2. Remote access machines in the server rooms

Solution:

  • Configure the firewalls on these machines to block access to 172 ranges.
-A OUTPUT -p ALL -d 172.25.0.128/25 -j REJECT
-A OUTPUT -p ALL -d 172.26.0.0/24 -j REJECT
-A OUTPUT -p ALL -d 172.26.1.0/24 -j REJECT
-A OUTPUT -p ALL -d 172.26.1.128/25 -j REJECT

Machines to block:

  • GRENDEL1 -- done!
  • GRENDEL2 -- done!
  • GRENDEL3 -- done!
  • GRENDEL4 -- done!
  • GRENDEL5 -- done!
  • GRENDEL6 -- done!
  • EVENFLOW -- done!
  • GARDEN -- done!
  • OCEANS -- done!
  • ONCE -- done!
  • SLIPSTREAM -- done!
  • CESR-BLADE1 -- done!
  • CESR-BLADE2 -- done!
  • CESR-BLADE3 -- done!
  • CESR-BLADE4 -- done!
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