I would query whether the BR1 phones really do get an IP from the DHCP server- can you erase the cnf file and check from the BR1 phone (settings-*-*-#-more-erase).
A good test is to create an SVI for the voice subnet and check if this gets an IP. From HQ-3750: int vlan 20 ip add dhcp Vik Malhi – CCIE #13890 Managing Partner - IPexpert, Inc. Telephone: +1.810.326.1444 ext 420 Fax: +1.810.454.0130 Mailto: [email protected] On Feb 10, 2012, at 9:47 AM, Shirley, Kris C. wrote: > I know it is redundant, but if BRI phones get DHCP that is proof the Subnet > for the DHCP scope in CUCM is good for that subnet only. > > Can you please provide the DHCP subnet screen shoot for the HQ site in CUCM? > > We have seen the configuration across the board for the IOS side but not CUCM. > > Thanks > Kris > > From: [email protected] > [mailto:[email protected]] On Behalf Of Baktha > Muralidharan > Sent: Friday, February 10, 2012 10:51 AM > To: [email protected] > Subject: [OSL | CCIE_Voice] DHCP Timeout > > - not sure if "utils csa disable" will help since it seems DHCP server IS > doling out IP addresses > - in fact, prbably all is ok on UCM, if it is giving out IP addresses to BR1 > phones, even though they are on a different subnet > - you could turn on "debug ip dhcp server events" on HJQ router, to see if > broadcast messages requesting IP addr are going out to UCM > - make sure there are no vlan restrictions on the trunk between switch and HQ > router. > - make sure no DHCP snooping is going on on the switch > - make sure DHCP service is running on HQ router > > thanks, > /Baktha > > On Fri, Feb 10, 2012 at 11:16 AM, <[email protected]> > wrote: > Send CCIE_Voice mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://onlinestudylist.com/mailman/listinfo/ccie_voice > 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_Voice digest..." > > > Today's Topics: > > 1. Re: DHCP Timeout (Ramy Abdelrahim) > 2. Re: DHCP Timeout (Rrcrumm) > 3. Re: DHCP Timeout (Eliot Ngwa) > 4. Re: DHCP Timeout (Kevin Spicer) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 10 Feb 2012 15:18:28 +0000 > From: Ramy Abdelrahim <[email protected]> > To: <[email protected]> > Cc: [email protected] > Subject: Re: [OSL | CCIE_Voice] DHCP Timeout > Message-ID: <[email protected]> > Content-Type: text/plain; charset="windows-1256" > > > CUCM is pingable from both the switch and the HQ-RTR. HQ-RTR#ping > 10.10.210.10 source 10.10.200.3 > Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 10.10.210.10, > timeout is 2 seconds:Packet sent with a source address of > 10.10.200.3!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = > 1/2/4 ms > > Date: Fri, 10 Feb 2012 08:17:42 -0600 > Subject: Re: [OSL | CCIE_Voice] DHCP Timeout > From: [email protected] > To: [email protected] > CC: [email protected] > > OK so BR1 is working but HQ is not. > > Difference is that BR1 the switch ports have direct access to the routing, > they are clearly being routed. > > My guess is that the voice vlan on HQ is not able to reach the CUCM. > > See if you can ping the CUCM from the switch. If this does not work, then > you will have to find your routing issue. > > > 2012/2/10 Ramy Abdelrahim <[email protected]> > > > > > > Dear All, > I faced a scenario on workbook 2 that requests to have HQ and BR1 phones > acquire their IP addresses from UCM-PUB. What happened was BR1 phones were > able to get IP addresses from the UCM-PUB but HQ phones were not. The Switch > and HQ router configuration is as follows. I appreciate if anyone can help on > that. > > NOTE: The UCM-PUB is pingable from the switch and the HQ-RTR. > Switch: > vlan 10 name DATA!vlan 20 > name PHONES!vlan 30 name SERVERS!interface fastethernet 1/0/1 -- To HQ > router switchport trunk encapsulation dot1q switchport mode trunk > switchport trunk native vlan 10!interface fastethernet 1/0/2 -- HQ Phone 1 > switchport access vlan 10 switchport mode access switchport voice vlan 20 > spantree portfast > !/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// > HQ-RTR: > interface fastethernet 0/0.10 > encapsulation dot1q 10 native ip address 10.10.100.1 255.255.255.0!interface > fastethernet 0/0.20 encapsulation dot1q 20 ip address 10.10.200.3 > 255.255.255.0 > ip helper-address 10.10.210.10!interface fastethernet 0/0.30 encapsulation > dot1q 30 ip address 10.10.210.1 255.255.255.0 > !/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// > > Thanks > > Ramy > > _______ > Methodist. Leading Medicine. > > Recognized by U.S.News & World Report as one of America's "Best Hospitals" in > 13 specialties. Named to FORTUNE® Magazine's "100 Best Companies to Work > For®" list seven years in a row. Designated as a Magnet hospital for > excellence in nursing. Visit us atmethodisthealth.com. Follow us at > twitter.com/MethodistHosp and www.facebook.com/MethodistHospital. > > ***CONFIDENTIALITY NOTICE*** This e-mail is the property of The Methodist > Hospital and/or its relevant affiliates and may contain restricted and > privileged material for the sole use of the intended recipient(s). Any > review, use, distribution or disclosure by others is strictly prohibited. If > you are not the intended recipient (or authorized to receive for the > recipient), please contact the sender and delete all copies of the message. > Thank you. > > _______________________________________________ > 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
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