Re: [v6ops] DHCPv6 PD client on cellular on Android

[[e-mail]]

> >  Understood.   The issue here is that the ISC client is using bpf (or lpf)
> >  to send packets rather than using the Linux stack.   Try compiling it with
> >  #define USE_SOCKETS and see if the behavior changes.
> 
> => in fact it uses BPF/LPF/... for DHCPv4 but as you can't disable
> DHCPv4 yet you should recompile with the socket only option.
>  This can break direct DHCPv4 on some systems but it doesn't matter as
> you want only DHCPv6. Note if (when?) this will become a common case
> you can ask for a feature request so it will be handled directly
> at the configuration phase.

The problem, at least on some systems, is being able to receive DHCP
*broadcast* packets (e.g. the first Discover packet in a DHCPv4
transaction).

I run ISC DHCP on FreeBSD, compiled without BPF, and with all DHCP
traffic via relay agents. No problems.

Steinar Haug, AS2116