[support] Do HA install the radvd?

[Arnaud Ebalard]

Hi,

tony chen <aoc90058 at gmail.com> writes:

> In my setup NEMO environment, I use the the testbed in the NEPL Howto
> website,
>
> In the MR's mip6d.conf
>
> # Replace eth0 with your egress interface
> MnHomeLink "eth0" {
>       IsMobRtr enabled;
>       *HomeAgentAddress 2001:a:b:0::1000;*
>       HomeAddress 2001:a:b:0::1/64 (2001:a:b:1::/64);
> }
> has assigned the HA address,
> and now I have a setup problem:
> Do the HA must still install Radvd to send router advertisement??
> if yes, could you tell me why?

You need the home network prefix to be advertised on the link. IIRC, it
does not matter if it is done by a radvd running on the HA or a router
of the link as long as routes on the HA reflect that. UMIP learns the
home network topology from received RA.

While I am at it, if you use only umip from linux-ipv6.org git tree
patched w/ NEPL, you have to start radvd *after* mip6d or wait for a
while until it has learned the home network topology via unsolicited
RA. If you use the version in my repo (http://natisbad.org/MIPv6/),
it has been patched to send RS at startup.

Cheers,

a+