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New Member

option 150 ip x.x.x.x under DHCP pool using cisco phones

                   Hi all,

We have 2921 router supporting DHCP pool.

I have created

ip dhcp pool voice

need to know what does command  option 150 ip x.x.x.x  will do under ip dhcp pool voice?

we are using cisco phones?

Thanks

Mahesh

Everyone's tags (3)
1 ACCEPTED SOLUTION

Accepted Solutions

Re: option 150 ip x.x.x.x under DHCP pool using cisco phones

Hi,

That command is used to define the IP address(es) of the TFTP server(s) (CME/CUCM) to download the phone configuration files.

Hope to help, please remember to rate the post if it does.

Kind regards,

- Adrian.

5 REPLIES

Re: option 150 ip x.x.x.x under DHCP pool using cisco phones

Hi,

That command is used to define the IP address(es) of the TFTP server(s) (CME/CUCM) to download the phone configuration files.

Hope to help, please remember to rate the post if it does.

Kind regards,

- Adrian.

New Member

option 150 ip x.x.x.x under DHCP pool using cisco phones

Hi Adrian,

Many thanks for reply back.

MAhesh

Hello Friends,

Hello Friends,

I am going to change my MCS server for a UCS server on vmware in a new network . Currently I have the TFTP and DHP pool service in all local routers (UCM is not giving that services). However my client wants the phones don´t move to the new network. So my new UCS server will be in a different network. Can I specify the new call manager in a different network than telephone network? Can I specify a second call manager as TFTP on a local router?

ip dhcp excluded-address    x.x.x.1       x.x.x.5
ip dhcp pool local phones
network    x.x.x..0       255.255.255.0
default-router    x.x.x.1
option 150 ip    y.y.y.y
lease infinite

Thanks in advance !

Cisco Employee

You may check the ip helper

You may check the ip helper-address  command as described in the following link

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_dhcp/configuration/12-4t/dhcp-12-4t-book/config-dhcp-relay-agent.html

Manish

Manish,

Manish,

I don´t have ip helper-address in my remote gateways. However I just moved the ip option 150 to my new UCS server and it worked properly. Now the DHCP service is in the x network and the TFTP is in the another network (y network). The phones of the old MCS server were registered properly in the new server.

Thank you for all !

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