Looking for some help on an issue I've been having lately. Issue is we recently changed networks and since some of our remote sites are now getting DHCP addresses from our VLAN 1 IP Block.
Topology is as follows:
DHCP Server --> port 1/3 Cisco 6509 --> WAN 4/48 Trunk port (Ethernet Fiber connection) --> Port 2 Overture 65 --> Port 3 Goes to RAD unit by Earthlink
The RAD Unit has Fiber coming out the back going to the carrier. So in this we have an Overture 65 that is passing all the VLANs - C-Tags to the RAD who put a S-Tag on it and sends the packets out to the carrier.
On the remote site side of the connection we have an Overture 65 handing off Ethernet to our Cisco 1800s and 1900 routers to FA0/1. The FA0/1 is set as a sub-interface matching a /30 back to the 6509 at our host location.
6509
VLAN 1
IP Address 192,168.1.0 /24
VLAN 203 (Remote #1)
IP Address 172.31.255.1 /30
VLAN 204 (Remote #2)
IP Address 172.31.255.5 /30
_____________________________________________________________________
Remote Office #1
FA0/1.203
IP Address 172.31.255.2 /30
Encap dot1q 203
FA0/0.1
IP Address 192.168.108.1 /24
encap dot1q 1
ip helper-address 192.168.1.13
My boxes are getting 192.168.1.x addresses instead of the 108 network. Anyone experienced the same thing? What was the fix? I have a couple of ideas but wanted to ask the group here. Any suggestions are welcome. Thanks, B
