I did not sniff as I was supporting through phone. So I didn´t have the patience for sniffer tracing :)
So I can´t answer. I would love to do the sniffer trace cause this sounds like an interesting problem. regards. Kristjan -----Original Message----- From: Ralph Olsen [mailto:[email protected]] Sent: 31. október 2011 20:39 To: Kristján Ólafur Eðvarðsson Cc: Leigh Jewell; [email protected] Subject: Re: [OSL | CCIE_Wireless] 1142 dhcp issue You gotta do the full monty sniffer trace. Do you see the complete 4 parts of the DHCP? Does the DHCP request include the Vender Code ID? At least you get to practice your SPAN configuration. :) /Ralph 2011/10/31 Kristján Ólafur Eðvarðsson <[email protected]>: > Thanks, > > > > There was nothing special ordered but a AIR-LAP1142. > > > > But it still should get an dhcp ip no matter what options are working > or not. > > We did a workaround with putting up dhcp scopes on the 2960's. And it > worked > > well. There is something I can´t put my finger on regarding the dhcp > forward > > through the juniper. > > > > If I was on site, I would collect a sniffer trace with the PC dhcp > request that worked fine > > on the same port and the dhcp request from the AP that didn´t. But as > I was helping guys > > through the phone, that would have taken too much time. > > > > Intersting issue. I wonder there is something specific with Cisco AP´s > and Juniper even > > though no logic seems to apply. > > > > regards. Kristjan > > > > From: Leigh Jewell [mailto:[email protected]] > Sent: 31. október 2011 00:38 > To: Kristján Ólafur Eðvarðsson > Cc: [email protected] > Subject: Re: [OSL | CCIE_Wireless] 1142 dhcp issue > > > > > > When ordering the LWAPP AP you can selection to order with service > provider option which means it it configured to send the VCI with > string "-ServiceProvider" appended. If you AP's have been ordered with > this option your DHCP server may not have this VCI configured and > hence why it doesn't work. A quick debug of the DHCP request should > show you if this is the problem. > > 2011/10/30 Kristján Ólafur Eðvarðsson <[email protected]> > > I wonder if anyone has come accross this. > > Got this customer with 1142 he already patched to the ceiling. (which > I normally don´t reccmend if it can be tested first...) DHCP for the > AP is an issue. The ap simply does not get DHCP address from server. A > PC connected to the same port gets an IP right away and can ping the > controller immediately. > > the port is: > " > switchport mode access > switchport access vlan 30 > spanning-tree porfast > " > its a 2960 poe switch connected to vlan trunk to a juniper router. > > We tried to get one AP on console and manually did "lwapp ap ip address" > e.t.c and joned the controller manually and everything worked of > course. > > Has anyone heard of such issues with 1142 out of the box ?. This is > over > layer3 and a Juniper router is forwarding the requests to a Cisco > router on a remote subnet who is acting as the dhcp server. > > I wonder if there is some bug with shipped APs and software. > > I change the AP to dhcp again from WLC after registration but it still > doesn´t get ip. Remember PC´s get an address with the same network > configuration on the same switchport if plugged in. > I read somewhere that vlan trunk and native vlan might help. But that > didn´t work either. No discovery sent no ip address, which is normal. > > anyone had this problem ? > > regards. Kristjan > _______________________________________________ > For more information regarding industry leading CCIE Lab training, > please visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, > please visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
