Logically isolated VPNs with MPLS - Centralized DHCP
Ronald F. Tallman
ronthu at comcast.net
Mon Oct 31 17:02:25 UTC 2011
Looking for a centralized DHCP solution that supports the following:
* Numerous VPNs isolated with MPLS - Therefore isolated/separated
subnets.
* Clients dispatch DHCP request
* Cisco router/relay agent forwards request to centralized DHCP server
to management subnet
* Cisco relay agent adds information with Option 82
* Presently DHCP server recognizes forwarded request but will not
serve IP as it's sourced from "Unknown Subnet"
* The subnet is actively provisioned in the DHCP server configuration
Some searching has discussed a HEX value implemented into the Option 82
relay packet to pass ClassID for the subnet.?
Anyone have a working configuration example?
Thanks
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