IPTV set top box can't get ip address from its server in different vlan

[Hythim Ali El Hadad]

Hi,

As description, iptv set top box can't get ip address from its dhcp server

If we put the set top box with the server on the same vlan . it work

on different vlans , it didn't get ip address.

they are connected to the same switch that contain the gateway for both as interface vlans

we tried ip helper-address also multicast routing is configured and working

Do you think it need special configuration to reach the server on the other vlan ?

Thanks

[Mark Malone]

Hi

It should just need the helper address on the vlan interface so it can push the dhcp packet to it , multicast has no part in how it obtains its address

did you debug the dhcp to see if the packet is reach the server , and to see if the request is being sent or requested

this guide below has an example how to debug the cli for dhcp , or you could span the traffic in wireshark see whats going on , stick laptop on same port and vlan as the ip box setup wireshark on it and see if requests are going back and forth or not

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/debug/command/a1/db-a1-cr-book/db-d1.html#wp1944872525