hi, i am not good into networking so i like need some help from you guys to configure my network my current setup, we have couple of servers one server for domain with DHCP now we have around 190 client computers everything working fine my network range is 192.168.10.0 dhcp server starting from 192.168.10.10 to 200, 201 to 250 i assign for servers and other network devices Gateway 192.168.10.1 this my router sonicwall now we are going to open another branch office with around 150 computers so my current ip range not enough for us how can setup another dhcp scope , new computers also i need to join to my current network. if i connect another network card to my server and release ip addess from that i hope it will be ok but i like to know how to setup gateway coz new ip range and gateway will be different please suggest a good idea for me Thomas

You have several options to accommodate new hosts... The most salable and flexible solution is to simply create a new DHCP scope for the remote subnet. On that remote subnet, configure the router to use the DHCP relay agent service (IP Helper for cisco). Point the relay agent to your DHCP server's IP address. There is no need for another NIC in the DHCp server. While DHCP can service clients using multiple NICs, its not as a flexible design as with the use of VLANs and Relay agents. Info regarding Relay Agents: http://www.itgeared.com/articles/1112-dhcp-relay-agent/ Guides and tutorials, visit ITGeared.com.

so ur telling that configure new dhcp scope at same NIC card , my router sonicwall have IP helper option . if i create another new range DHCP scope eg: 192.168.20.0 what will be the gateway i need to provide i need a V lan Switch ? how can i configure DHCP relay agent ? Thomas

Hi Thomas, Firstly, please let us know that the branch office is using leased to connect to the primary site or over the Internet. If the branch office direct connect to the SonicWall router or other routers between them, make sure that the router at the remote site has configure DHCP relay agent. So clients at branch office can receive the DHCP packets and get IP address. Also, we can use router as a DHCP server on remote site. In short, we just need to ensure that clients at branch office have correct IP and the two subnets can communicate with each other. If the branch office is over the Internet to primary site, its better to install new DHCP and DNS on the branch office network. Branch Office over the Internet http://technet.microsoft.com/en-us/library/cc736396(WS.10).aspx Best Regards, AidenAiden Cao TechNet Community Support

hi aiden, its not outside the network , main office and new branch office in same netwrok ( connected through fiber cable ) i like to know how can i configure 2 dhcp from same nic card. how can i configure it Thomas

Thank you to all valuable support me and suggection let me try to do as we discussed Thomas