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MV90 IP Data Transport. ERCOT Recommendation John Fisher & Jeff Maddox. Option 1 – ERCOT WAN. MP IP meters are located on MP’s private network MP NAT translates the IP Meters to an ERCOT WAN IP Address ERCOT polls meters over the ERCOT WAN. Option 2 - Internet. - PowerPoint PPT Presentation
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MV90 IP Data Transport
ERCOT RecommendationJohn Fisher & Jeff Maddox
2
Option 1 – ERCOT WAN
ERCOT MP WAN
MP Network
IP Meter
IP Meter
IP Meter
ERCOT MV90 Communication Server
ERCOT Network
• MP IP meters are located on MP’s private network
• MP NAT translates the IP Meters to an ERCOT WAN IP Address
• ERCOT polls meters over the ERCOT WAN
3
Option 2 - Internet
• MP IP meters connect to MP network
• MP presents IP meters to ERCOT through an Internet routable IP address
• ERCOT polls meters over the secure encrypted IPSEC tunnel
Internet
MP Network
IP Meter
IP Meter
IP Meter
ERCOT MV90 Communication Server
ERCOT Network
Secure IPSEC Tunnel
4
Notes
• Permitting IP meters access to the Internet increases risk – Man-in-the-middle attacks– IP spoofing– Exposing meters to SCADA based attacks (vulnerabilities are an
unknown at present)
• Private networks are more secure and more reliable– Private networks are isolated by the Service Provider from
unauthorized users