I haven't updated the sw yet, maybe that will yield some results. I have confirmed that I can ping the DHCP server from the switch, and vice versa.
I'll check out the software image, and see how behind it is. Thanks for the tips.. -- Eric Cables On Fri, Jan 9, 2009 at 3:30 PM, Chris Burwell <[email protected]> wrote: > Hi Eric, > > There are a few basic things that should be checked first. I don't > mean to insult anyone, but I sometimes overlook some simple steps when > I dive into a problem. > > First, ensure you have the latest software (as HP calls it) running on > the switch. This is freely available from the Procurve website (no > login is needed). > > Second, console into the switch and see if you can ping the DHCP > server from the command prompt. If you cannot, then the switch does > not know how to reach the DHCP server. > > Finally, check to see that you have the proper route for the VLAN on > the switch. For example on our core 8212zl, I have to add the > following statement for each VLAN: > > vlan 800 > ip ospf 192.168.0.1 area 0.0.0.1 > exit > > Obviously this is the statement used for OSPF on an 8212zl, so your > config might be different (particularly if you're using a different > routing protocol. > > - Chris > > > Date: Thu, 8 Jan 2009 13:52:50 -0800 > > From: "Eric Cables" <[email protected]> > > Subject: [c-nsp] Procurve DHCP relay question > > To: "[email protected]" <[email protected]> > > Message-ID: > > <[email protected]> > > Content-Type: text/plain; charset=ISO-8859-1 > > > > I'm in the middle of a transition from HP -> Cisco, with an HP 2848 as > the > > "core", so sorry if this e-mail is off topic. I am having a hard time > > getting DHCP relay to work, and was hoping someone with HP experience > could > > chime in with some assistance. > > > > I've created a new VLAN, and have specified a helper-address to point to > a > > DHCP server that manages dozens of scopes. The new VLAN functions fine, > > assuming users are given a static address, but DHCP does not appear to > work > > at all. > > > > To troubleshoot I pointed the helper-address to a system with Wireshark, > but > > I don't see any requests coming in when a user on the new VLAN requests a > > new DHCP address, indicating that the request is not being forwarded > > properly. Is there any debugging available on the procurve to > troubleshoot > > this further? > > > > I've read a number of documents describing how to configure DHCP relay on > a > > procurve, and as far as I can tell the recommendations match my > > configuration. > > > > Here are the features enabled on the 2848: > > - 'ip routing' is enabled > > - 'dhcp-relay' does not show in a 'show run', indicating it is enabled > (the > > default) > > - A 'ip helper-address x.x.x.x' statement is configured on the VLAN > > interface > > - There is a route back to the destination helper-address > > - Connectivity works on the VLAN in question, assuming users are > statically > > configured > > > > Any advice would be appreciated.. > > > > -- Eric Cables > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
