DHCP Proxy setting? Thanks,
Bruce Johnson | Network Engineer Partners Healthcare | Network Engineering 617.726.9662 | [email protected] On Oct 31, 2011, at 12:22 PM, "[email protected]" <[email protected]> wrote: > Send CCIE_Wireless mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://onlinestudylist.com/cgi-bin/mailman/listinfo/ccie_wireless > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of CCIE_Wireless digest..." > > > Today's Topics: > > 1. Re: 1142 dhcp issue (Leigh Jewell) > 2. Re: 1142 dhcp issue (Kristj?n ?lafur E?var?sson) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 31 Oct 2011 11:38:01 +1100 > From: Leigh Jewell <[email protected]> > To: Kristj?n ?lafur E?var?sson <[email protected]> > Cc: "[email protected]" > <[email protected]> > Subject: Re: [OSL | CCIE_Wireless] 1142 dhcp issue > Message-ID: > <CAKQyWd_n_HiZ2=23wtw6ryzv_y5xiyianwgkublklpc2tb+...@mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > 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 Kristj?n ?lafur E?var?sson <[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 >> > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > </archives/ccie_wireless/attachments/20111031/8ed303c8/attachment-0001.html> > > ------------------------------ > > Message: 2 > Date: Mon, 31 Oct 2011 09:21:44 +0000 > From: Kristj?n ?lafur E?var?sson <[email protected]> > To: Leigh Jewell <[email protected]> > Cc: "[email protected]" > <[email protected]> > Subject: Re: [OSL | CCIE_Wireless] 1142 dhcp issue > Message-ID: > <[email protected]> > Content-Type: text/plain; charset="iso-8859-1" > > 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. okt?ber 2011 00:38 > To: Kristj?n ?lafur E?var?sson > 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 Kristj?n ?lafur E?var?sson > <[email protected]<mailto:[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<http://www.ipexpert.com> > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com<http://www.PlatinumPlacement.com> > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > </archives/ccie_wireless/attachments/20111031/4795cd5f/attachment-0001.html> > > ------------------------------ > > _______________________________________________ > CCIE_Wireless mailing list > [email protected] > http://onlinestudylist.com/cgi-bin/mailman/listinfo/ccie_wireless > > > End of CCIE_Wireless Digest, Vol 31, Issue 6 > ******************************************** The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. _______________________________________________ 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
