dhcp vendor classes option

hi all,

i would like to use our main dhcp windows 2003 server for avaya ip phones
and computers too. i tried to create a separate scope for ip phones only with
vendor classes option 60 but without success. can you help me with it please ?

thank you

lukas


Adastra

"Adastra" <(E-Mail Removed)> wrote in message
news:68A7698D-BE2D-4947-800E-(E-Mail Removed)...
> hi all,
>
> i would like to use our main dhcp windows 2003 server for avaya ip phones
> and computers too. i tried to create a separate scope for ip phones only
> with
> vendor classes option 60 but without success. can you help me with it
> please ?
>
> thank you
>
> lukas

Hi Lukas,

You need to open your DHCP MMC --> right-click on the name of the server
that will be hosting the scope for your IP phones --> select "Pre-defined
Options" --> click "Add" --> enter your vendor information (put the number
"60" in the "code" field).

Once this option is created, you can use it in your scopes, as needed.

Hope that helps,
Oliver

hi oliver,

i was unsuccesfull :-(.
i have 1 superscope with 2 scopes, first is 172.16.16.0/21 for computers,
second 192.168.12.1/24 is for avaya ip phones. i created predefined options
in options class - dhcp standard options - code 60, string ccp.avaya.com (
vendor info is from ethereal)

do you have any proposal or hint ?

thank you

lukas

"Oliver O'Boyle" wrote:

>
> "Adastra" <(E-Mail Removed)> wrote in message
> news:68A7698D-BE2D-4947-800E-(E-Mail Removed)...
> > hi all,
> >
> > i would like to use our main dhcp windows 2003 server for avaya ip phones
> > and computers too. i tried to create a separate scope for ip phones only
> > with
> > vendor classes option 60 but without success. can you help me with it
> > please ?
> >
> > thank you
> >
> > lukas
>
> Hi Lukas,
>
> You need to open your DHCP MMC --> right-click on the name of the server
> that will be hosting the scope for your IP phones --> select "Pre-defined
> Options" --> click "Add" --> enter your vendor information (put the number
> "60" in the "code" field).
>
> Once this option is created, you can use it in your scopes, as needed.
>
> Hope that helps,
> Oliver
>
>
>

"Adastra" <(E-Mail Removed)> wrote in message
news:80C609AF-9703-4763-BDEC-(E-Mail Removed)...
> hi oliver,
>
> i was unsuccesfull :-(.

How were you unsuccessful? After you create the option, are you able to see
it in the DHCP Standard Options list?

Oliver

> i have 1 superscope with 2 scopes, first is 172.16.16.0/21 for computers,
> second 192.168.12.1/24 is for avaya ip phones. i created predefined
> options
> in options class - dhcp standard options - code 60, string ccp.avaya.com (
> vendor info is from ethereal)
>
> do you have any proposal or hint ?
>
> thank you
>
> lukas
>
> "Oliver O'Boyle" wrote:
>
>>
>> "Adastra" <(E-Mail Removed)> wrote in message
>> news:68A7698D-BE2D-4947-800E-(E-Mail Removed)...
>> > hi all,
>> >
>> > i would like to use our main dhcp windows 2003 server for avaya ip
>> > phones
>> > and computers too. i tried to create a separate scope for ip phones
>> > only
>> > with
>> > vendor classes option 60 but without success. can you help me with it
>> > please ?
>> >
>> > thank you
>> >
>> > lukas
>>
>> Hi Lukas,
>>
>> You need to open your DHCP MMC --> right-click on the name of the server
>> that will be hosting the scope for your IP phones --> select "Pre-defined
>> Options" --> click "Add" --> enter your vendor information (put the
>> number
>> "60" in the "code" field).
>>
>> Once this option is created, you can use it in your scopes, as needed.
>>
>> Hope that helps,
>> Oliver
>>
>>
>>

yes. i see it, i have ASCII value ccp.avaya.com, binary 63 63 70 2E 61 76 61
79 61 2E 63 6F 6D in scope options table general too but ip phone get ip
address from bad scope :-(

lukas

"Oliver O'Boyle" wrote:

> "Adastra" <(E-Mail Removed)> wrote in message
> news:80C609AF-9703-4763-BDEC-(E-Mail Removed)...
> > hi oliver,
> >
> > i was unsuccesfull :-(.
>
> How were you unsuccessful? After you create the option, are you able to see
> it in the DHCP Standard Options list?
>
> Oliver
>
> > i have 1 superscope with 2 scopes, first is 172.16.16.0/21 for computers,
> > second 192.168.12.1/24 is for avaya ip phones. i created predefined
> > options
> > in options class - dhcp standard options - code 60, string ccp.avaya.com (
> > vendor info is from ethereal)
> >
> > do you have any proposal or hint ?
> >
> > thank you
> >
> > lukas
> >
> > "Oliver O'Boyle" wrote:
> >
> >>
> >> "Adastra" <(E-Mail Removed)> wrote in message
> >> news:68A7698D-BE2D-4947-800E-(E-Mail Removed)...
> >> > hi all,
> >> >
> >> > i would like to use our main dhcp windows 2003 server for avaya ip
> >> > phones
> >> > and computers too. i tried to create a separate scope for ip phones
> >> > only
> >> > with
> >> > vendor classes option 60 but without success. can you help me with it
> >> > please ?
> >> >
> >> > thank you
> >> >
> >> > lukas
> >>
> >> Hi Lukas,
> >>
> >> You need to open your DHCP MMC --> right-click on the name of the server
> >> that will be hosting the scope for your IP phones --> select "Pre-defined
> >> Options" --> click "Add" --> enter your vendor information (put the
> >> number
> >> "60" in the "code" field).
> >>
> >> Once this option is created, you can use it in your scopes, as needed.
> >>
> >> Hope that helps,
> >> Oliver
> >>
> >>
> >>
>
>
>

> yes. i see it, i have ASCII value ccp.avaya.com, binary 63 63 70 2E 61 76
> 61
> 79 61 2E 63 6F 6D in scope options table general too but ip phone get ip
> address from bad scope :-(

Are your phones on the same subnet as your workstations?

Normally, it is a best practice to put them in their own separate VLAN.
However, I have not implemented an Avaya solution yet, so I'm not sure what
the vendor recommends. I prefer putting IP phones in their own VLAN for
better manageability and security reasons.

Oliver

>
> lukas
>
> "Oliver O'Boyle" wrote:
>
>> "Adastra" <(E-Mail Removed)> wrote in message
>> news:80C609AF-9703-4763-BDEC-(E-Mail Removed)...
>> > hi oliver,
>> >
>> > i was unsuccesfull :-(.
>>
>> How were you unsuccessful? After you create the option, are you able to
>> see
>> it in the DHCP Standard Options list?
>>
>> Oliver
>>
>> > i have 1 superscope with 2 scopes, first is 172.16.16.0/21 for
>> > computers,
>> > second 192.168.12.1/24 is for avaya ip phones. i created predefined
>> > options
>> > in options class - dhcp standard options - code 60, string
>> > ccp.avaya.com (
>> > vendor info is from ethereal)
>> >
>> > do you have any proposal or hint ?
>> >
>> > thank you
>> >
>> > lukas
>> >
>> > "Oliver O'Boyle" wrote:
>> >
>> >>
>> >> "Adastra" <(E-Mail Removed)> wrote in message
>> >> news:68A7698D-BE2D-4947-800E-(E-Mail Removed)...
>> >> > hi all,
>> >> >
>> >> > i would like to use our main dhcp windows 2003 server for avaya ip
>> >> > phones
>> >> > and computers too. i tried to create a separate scope for ip phones
>> >> > only
>> >> > with
>> >> > vendor classes option 60 but without success. can you help me with
>> >> > it
>> >> > please ?
>> >> >
>> >> > thank you
>> >> >
>> >> > lukas
>> >>
>> >> Hi Lukas,
>> >>
>> >> You need to open your DHCP MMC --> right-click on the name of the
>> >> server
>> >> that will be hosting the scope for your IP phones --> select
>> >> "Pre-defined
>> >> Options" --> click "Add" --> enter your vendor information (put the
>> >> number
>> >> "60" in the "code" field).
>> >>
>> >> Once this option is created, you can use it in your scopes, as needed.
>> >>
>> >> Hope that helps,
>> >> Oliver
>> >>
>> >>
>> >>
>>
>>
>>

Adastra,

I second that.
--
Regards,

Patrick Boren


"Oliver O'Boyle" wrote:

> > yes. i see it, i have ASCII value ccp.avaya.com, binary 63 63 70 2E 61 76
> > 61
> > 79 61 2E 63 6F 6D in scope options table general too but ip phone get ip
> > address from bad scope :-(
>
> Are your phones on the same subnet as your workstations?
>
> Normally, it is a best practice to put them in their own separate VLAN.
> However, I have not implemented an Avaya solution yet, so I'm not sure what
> the vendor recommends. I prefer putting IP phones in their own VLAN for
> better manageability and security reasons.
>
> Oliver
>
> >
> > lukas
> >
> > "Oliver O'Boyle" wrote:
> >
> >> "Adastra" <(E-Mail Removed)> wrote in message
> >> news:80C609AF-9703-4763-BDEC-(E-Mail Removed)...
> >> > hi oliver,
> >> >
> >> > i was unsuccesfull :-(.
> >>
> >> How were you unsuccessful? After you create the option, are you able to
> >> see
> >> it in the DHCP Standard Options list?
> >>
> >> Oliver
> >>
> >> > i have 1 superscope with 2 scopes, first is 172.16.16.0/21 for
> >> > computers,
> >> > second 192.168.12.1/24 is for avaya ip phones. i created predefined
> >> > options
> >> > in options class - dhcp standard options - code 60, string
> >> > ccp.avaya.com (
> >> > vendor info is from ethereal)
> >> >
> >> > do you have any proposal or hint ?
> >> >
> >> > thank you
> >> >
> >> > lukas
> >> >
> >> > "Oliver O'Boyle" wrote:
> >> >
> >> >>
> >> >> "Adastra" <(E-Mail Removed)> wrote in message
> >> >> news:68A7698D-BE2D-4947-800E-(E-Mail Removed)...
> >> >> > hi all,
> >> >> >
> >> >> > i would like to use our main dhcp windows 2003 server for avaya ip
> >> >> > phones
> >> >> > and computers too. i tried to create a separate scope for ip phones
> >> >> > only
> >> >> > with
> >> >> > vendor classes option 60 but without success. can you help me with
> >> >> > it
> >> >> > please ?
> >> >> >
> >> >> > thank you
> >> >> >
> >> >> > lukas
> >> >>
> >> >> Hi Lukas,
> >> >>
> >> >> You need to open your DHCP MMC --> right-click on the name of the
> >> >> server
> >> >> that will be hosting the scope for your IP phones --> select
> >> >> "Pre-defined
> >> >> Options" --> click "Add" --> enter your vendor information (put the
> >> >> number
> >> >> "60" in the "code" field).
> >> >>
> >> >> Once this option is created, you can use it in your scopes, as needed.
> >> >>
> >> >> Hope that helps,
> >> >> Oliver
> >> >>
> >> >>
> >> >>
> >>
> >>
> >>
>
>
>

phones subnet is 255.255.255.0, computers subnet is 255.255.248.0,

what is vendor class data type, i use string with code 60, its ok ?
in the string i have ccp.avaya.com

ethereal offer in phone dhcp discover option 60: Vendor Class identifier =
"ccp.avaya.com" - hexa 3c 0d 63 63 70 2e 61 76 61 79 61 2e 63 6f 6d

when i deactivate first scope (computers scope), second phone scope working
correctly.

i know that vlan is better solution but i dont know how i can do it with one
dhcp server ?

lukas

"Oliver O'Boyle" wrote:

> > yes. i see it, i have ASCII value ccp.avaya.com, binary 63 63 70 2E 61 76
> > 61
> > 79 61 2E 63 6F 6D in scope options table general too but ip phone get ip
> > address from bad scope :-(
>
> Are your phones on the same subnet as your workstations?
>
> Normally, it is a best practice to put them in their own separate VLAN.
> However, I have not implemented an Avaya solution yet, so I'm not sure what
> the vendor recommends. I prefer putting IP phones in their own VLAN for
> better manageability and security reasons.
>
> Oliver
>
> >
> > lukas
> >
> > "Oliver O'Boyle" wrote:
> >
> >> "Adastra" <(E-Mail Removed)> wrote in message
> >> news:80C609AF-9703-4763-BDEC-(E-Mail Removed)...
> >> > hi oliver,
> >> >
> >> > i was unsuccesfull :-(.
> >>
> >> How were you unsuccessful? After you create the option, are you able to
> >> see
> >> it in the DHCP Standard Options list?
> >>
> >> Oliver
> >>
> >> > i have 1 superscope with 2 scopes, first is 172.16.16.0/21 for
> >> > computers,
> >> > second 192.168.12.1/24 is for avaya ip phones. i created predefined
> >> > options
> >> > in options class - dhcp standard options - code 60, string
> >> > ccp.avaya.com (
> >> > vendor info is from ethereal)
> >> >
> >> > do you have any proposal or hint ?
> >> >
> >> > thank you
> >> >
> >> > lukas
> >> >
> >> > "Oliver O'Boyle" wrote:
> >> >
> >> >>
> >> >> "Adastra" <(E-Mail Removed)> wrote in message
> >> >> news:68A7698D-BE2D-4947-800E-(E-Mail Removed)...
> >> >> > hi all,
> >> >> >
> >> >> > i would like to use our main dhcp windows 2003 server for avaya ip
> >> >> > phones
> >> >> > and computers too. i tried to create a separate scope for ip phones
> >> >> > only
> >> >> > with
> >> >> > vendor classes option 60 but without success. can you help me with
> >> >> > it
> >> >> > please ?
> >> >> >
> >> >> > thank you
> >> >> >
> >> >> > lukas
> >> >>
> >> >> Hi Lukas,
> >> >>
> >> >> You need to open your DHCP MMC --> right-click on the name of the
> >> >> server
> >> >> that will be hosting the scope for your IP phones --> select
> >> >> "Pre-defined
> >> >> Options" --> click "Add" --> enter your vendor information (put the
> >> >> number
> >> >> "60" in the "code" field).
> >> >>
> >> >> Once this option is created, you can use it in your scopes, as needed.
> >> >>
> >> >> Hope that helps,
> >> >> Oliver
> >> >>
> >> >>
> >> >>
> >>
> >>
> >>
>
>
>

"Adastra" <(E-Mail Removed)> wrote in message
news:FA77390C-7848-4DF3-AB88-(E-Mail Removed)...
> phones subnet is 255.255.255.0, computers subnet is 255.255.248.0,
>

These subnet masks are only half the picture. What IP address ranges are you
trying to provide with the DHCP server? By looking at the masks however, it
looks like your computer scope overlaps the phone scope. This is probably
why it's being picked up first (but this assumption is based on only having
knowledge of your masks, and not the range of IPs you are trying to hand out
to computers and phones).

How many computers do you have?

How many phones do you have?

> what is vendor class data type, i use string with code 60, its ok ?
> in the string i have ccp.avaya.com
>

60 is probably the code the phones are looking for, so this is fine.

> ethereal offer in phone dhcp discover option 60: Vendor Class identifier =
> "ccp.avaya.com" - hexa 3c 0d 63 63 70 2e 61 76 61 79 61 2e 63 6f 6d
>

This string is for an outside address. I'm not familiar with Avaya phone
systems, but typically, the phones should be pointing to your PBX or call
control server. This server is internal, and often provides the phones with
configuration information, and even images. Right now, you are pointing the
phones to an external server on the internet...

> when i deactivate first scope (computers scope), second phone scope
> working
> correctly.
>

Probabl because your computer scope encompasses your phone scope.

> i know that vlan is better solution but i dont know how i can do it with
> one
> dhcp server ?

The DHCP server needs to have an interface on each VLAN, OR, the router or
layer 3 switch you have everything connected to needs to act as a DHCP or
BOOTP relay. As a relay, it can forward your client's DHCP requests to a
DHCP server on another subnet.

Oliver

Your


>
> lukas
>
> "Oliver O'Boyle" wrote:
>
>> > yes. i see it, i have ASCII value ccp.avaya.com, binary 63 63 70 2E 61
>> > 76
>> > 61
>> > 79 61 2E 63 6F 6D in scope options table general too but ip phone get
>> > ip
>> > address from bad scope :-(
>>
>> Are your phones on the same subnet as your workstations?
>>
>> Normally, it is a best practice to put them in their own separate VLAN.
>> However, I have not implemented an Avaya solution yet, so I'm not sure
>> what
>> the vendor recommends. I prefer putting IP phones in their own VLAN for
>> better manageability and security reasons.
>>
>> Oliver
>>
>> >
>> > lukas
>> >
>> > "Oliver O'Boyle" wrote:
>> >
>> >> "Adastra" <(E-Mail Removed)> wrote in message
>> >> news:80C609AF-9703-4763-BDEC-(E-Mail Removed)...
>> >> > hi oliver,
>> >> >
>> >> > i was unsuccesfull :-(.
>> >>
>> >> How were you unsuccessful? After you create the option, are you able
>> >> to
>> >> see
>> >> it in the DHCP Standard Options list?
>> >>
>> >> Oliver
>> >>
>> >> > i have 1 superscope with 2 scopes, first is 172.16.16.0/21 for
>> >> > computers,
>> >> > second 192.168.12.1/24 is for avaya ip phones. i created predefined
>> >> > options
>> >> > in options class - dhcp standard options - code 60, string
>> >> > ccp.avaya.com (
>> >> > vendor info is from ethereal)
>> >> >
>> >> > do you have any proposal or hint ?
>> >> >
>> >> > thank you
>> >> >
>> >> > lukas
>> >> >
>> >> > "Oliver O'Boyle" wrote:
>> >> >
>> >> >>
>> >> >> "Adastra" <(E-Mail Removed)> wrote in message
>> >> >> news:68A7698D-BE2D-4947-800E-(E-Mail Removed)...
>> >> >> > hi all,
>> >> >> >
>> >> >> > i would like to use our main dhcp windows 2003 server for avaya
>> >> >> > ip
>> >> >> > phones
>> >> >> > and computers too. i tried to create a separate scope for ip
>> >> >> > phones
>> >> >> > only
>> >> >> > with
>> >> >> > vendor classes option 60 but without success. can you help me
>> >> >> > with
>> >> >> > it
>> >> >> > please ?
>> >> >> >
>> >> >> > thank you
>> >> >> >
>> >> >> > lukas
>> >> >>
>> >> >> Hi Lukas,
>> >> >>
>> >> >> You need to open your DHCP MMC --> right-click on the name of the
>> >> >> server
>> >> >> that will be hosting the scope for your IP phones --> select
>> >> >> "Pre-defined
>> >> >> Options" --> click "Add" --> enter your vendor information (put the
>> >> >> number
>> >> >> "60" in the "code" field).
>> >> >>
>> >> >> Once this option is created, you can use it in your scopes, as
>> >> >> needed.
>> >> >>
>> >> >> Hope that helps,
>> >> >> Oliver
>> >> >>
>> >> >>
>> >> >>
>> >>
>> >>
>> >>
>>
>>
>>

"Oliver O'Boyle" wrote:
>
> "Adastra" <(E-Mail Removed)> wrote in message
> news:FA77390C-7848-4DF3-AB88-(E-Mail Removed)...
> > phones subnet is 255.255.255.0, computers subnet is 255.255.248.0,
> >
>
> These subnet masks are only half the picture. What IP address ranges are you
> trying to provide with the DHCP server? By looking at the masks however, it
> looks like your computer scope overlaps the phone scope. This is probably
> why it's being picked up first (but this assumption is based on only having
> knowledge of your masks, and not the range of IPs you are trying to hand out
> to computers and phones).

172.16.16.0/21 first scope for computers
192.168.11.0/24 second scope for voip

> How many computers do you have?
300

> How many phones do you have?
150

> > what is vendor class data type, i use string with code 60, its ok ?
> > in the string i have ccp.avaya.com
> >
>
> 60 is probably the code the phones are looking for, so this is fine.
>
> > ethereal offer in phone dhcp discover option 60: Vendor Class identifier =
> > "ccp.avaya.com" - hexa 3c 0d 63 63 70 2e 61 76 61 79 61 2e 63 6f 6d
> >
>
> This string is for an outside address. I'm not familiar with Avaya phone
> systems, but typically, the phones should be pointing to your PBX or call
> control server. This server is internal, and often provides the phones with
> configuration information, and even images. Right now, you are pointing the
> phones to an external server on the internet...

i think that you dont understand me :-), string ccp.avaya.com is hardcoded
string in dhcp request packet in option 60

lukas

> > when i deactivate first scope (computers scope), second phone scope
> > working
> > correctly.
> >
>
> Probabl because your computer scope encompasses your phone scope.
>
> > i know that vlan is better solution but i dont know how i can do it with
> > one
> > dhcp server ?
>
> The DHCP server needs to have an interface on each VLAN, OR, the router or
> layer 3 switch you have everything connected to needs to act as a DHCP or
> BOOTP relay. As a relay, it can forward your client's DHCP requests to a
> DHCP server on another subnet.
>
> Oliver
>
> Your
>
>
> >
> > lukas
> >
> > "Oliver O'Boyle" wrote:
> >
> >> > yes. i see it, i have ASCII value ccp.avaya.com, binary 63 63 70 2E 61
> >> > 76
> >> > 61
> >> > 79 61 2E 63 6F 6D in scope options table general too but ip phone get
> >> > ip
> >> > address from bad scope :-(
> >>
> >> Are your phones on the same subnet as your workstations?
> >>
> >> Normally, it is a best practice to put them in their own separate VLAN.
> >> However, I have not implemented an Avaya solution yet, so I'm not sure
> >> what
> >> the vendor recommends. I prefer putting IP phones in their own VLAN for
> >> better manageability and security reasons.
> >>
> >> Oliver
> >>
> >> >
> >> > lukas
> >> >
> >> > "Oliver O'Boyle" wrote:
> >> >
> >> >> "Adastra" <(E-Mail Removed)> wrote in message
> >> >> news:80C609AF-9703-4763-BDEC-(E-Mail Removed)...
> >> >> > hi oliver,
> >> >> >
> >> >> > i was unsuccesfull :-(.
> >> >>
> >> >> How were you unsuccessful? After you create the option, are you able
> >> >> to
> >> >> see
> >> >> it in the DHCP Standard Options list?
> >> >>
> >> >> Oliver
> >> >>
> >> >> > i have 1 superscope with 2 scopes, first is 172.16.16.0/21 for
> >> >> > computers,
> >> >> > second 192.168.12.1/24 is for avaya ip phones. i created predefined
> >> >> > options
> >> >> > in options class - dhcp standard options - code 60, string
> >> >> > ccp.avaya.com (
> >> >> > vendor info is from ethereal)
> >> >> >
> >> >> > do you have any proposal or hint ?
> >> >> >
> >> >> > thank you
> >> >> >
> >> >> > lukas
> >> >> >
> >> >> > "Oliver O'Boyle" wrote:
> >> >> >
> >> >> >>
> >> >> >> "Adastra" <(E-Mail Removed)> wrote in message
> >> >> >> news:68A7698D-BE2D-4947-800E-(E-Mail Removed)...
> >> >> >> > hi all,
> >> >> >> >
> >> >> >> > i would like to use our main dhcp windows 2003 server for avaya
> >> >> >> > ip
> >> >> >> > phones
> >> >> >> > and computers too. i tried to create a separate scope for ip
> >> >> >> > phones
> >> >> >> > only
> >> >> >> > with
> >> >> >> > vendor classes option 60 but without success. can you help me
> >> >> >> > with
> >> >> >> > it
> >> >> >> > please ?
> >> >> >> >
> >> >> >> > thank you
> >> >> >> >
> >> >> >> > lukas
> >> >> >>
> >> >> >> Hi Lukas,
> >> >> >>
> >> >> >> You need to open your DHCP MMC --> right-click on the name of the
> >> >> >> server
> >> >> >> that will be hosting the scope for your IP phones --> select
> >> >> >> "Pre-defined
> >> >> >> Options" --> click "Add" --> enter your vendor information (put the
> >> >> >> number
> >> >> >> "60" in the "code" field).
> >> >> >>
> >> >> >> Once this option is created, you can use it in your scopes, as
> >> >> >> needed.
> >> >> >>
> >> >> >> Hope that helps,
> >> >> >> Oliver
> >> >> >>
> >> >> >>
> >> >> >>
> >> >>
> >> >>
> >> >>
> >>
> >>
> >>
>
>
>