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New Member

Remote Installation Server and DHCP

A client pc connected to a 3560 that is configured with vlans abd running layer 3 has a helper addr configured on it that is pointing to a router where the dhcp pool resides, the pc gets an ip addr, but there is also a RIS server in a server vlan on a 3750 switch, the dhcp pool had been modified to add option 66, bootfile and next-server options but the client does not seem to respond to these options and does not connect to the RIS server or do a tftp, is there any special confguration for the dhcp pool. The configuration of the network is as such, 3560 switch with vlans configured on it connected via a L3 link to a 3750 where the server farm vlan resides. The router with the dhcp pool is connected to the 3750 also via a L3 link

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New Member

Re: Remote Installation Server and DHCP

The ports where the PC:s are connected must be configured with "spanning-tree portfast"

New Member

Re: Remote Installation Server and DHCP

Thanks for your reply, the ports on the 3560 to which the pc's are connected are all set for spanning-tree-portfast. The issue that we are experiencing is that we get an ip address from the dhcp pool, but no matter what options or settings we apply to the dhcp pool, we cannot get the pc to try and connect to the RIS server. It appears to be related to the mechanism of the broadcast for the dhcp and then RIS address, and the extensions that are being expected in the dhcp response from the pool. Unfortunately this is a remote site and I have not been able to do sniffer traces to see the sequence of events. I have tried various scenarios on a tests bench but do not currently have access to a RIS server.

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