[c-nsp] DHCP relay still forwarding to old helper even if it's removed or changed

[Tarko Tikan]

hey,

> I tried to change the helper address, but after making the change,
> the box was still routing broadcasts to the old helper.

Are you 100% sure it's actually relayed traffic and not DHCP client that 
remembers DHCP server address and unicasts the request?

-- 
tarko