DHCP distributing ip addresses to another port / network

Hi Prashant Sagvekar 

Thank you for contacting us.

From the provided details we assume that broadcast domain of your different network is the same, you may have connected both the network in the same switch.

Kindly segregate your network to resolve the issue. Please use the seprate switch for individual network.

Hello Keyur,

Both network are already connected to different switch as they have located to different locations.

Hi,

do you have a firewall rule allowing any any between the two networks?

Ian

Hi,

do you have a firewall rule allowing any any between the two networks?

Ian

Hi,

We have rule to allow any service between HO network and Branch network where we have defined both networks. But this policy was created on new configuration and issue started now. 

Hi Prashant Sagvekar 

Please create a service-based rule and block DHCP service, place this rule on top of zones which are used to communicate between HO and BO.

Please refer the given link - https://community.sophos.com/kb/en-us/123579#Service-based%20routing

Please check: https://community.sophos.com/kb/en-us/123952