diskless boot, nfs server behind router

[Rick Macklem]

On Sat, 26 Jun 2010, alexs at ulgsm.ru wrote:

[stuff snipped]
>
>
> dhcp seems ok.
> [alexs:ul-it13:~]>kenv
> LINES="24"
> acpi_load="YES"
> boot.netif.gateway="10.144.140.1"
> boot.netif.hwaddr="00:1c:c0:5a:f4:72"
> boot.netif.ip="10.144.142.78"
> boot.netif.netmask="255.255.252.0"
> boot.nfsroot.nfshandle="Xbb55e849c6f9fd520c000000011c0600c20af931000000000000000000000000X"
> boot.nfsroot.path="/exp/fbsd71"
> boot.nfsroot.server="10.144.140.160"
> ....
>
> It is from diskless host in same subnet where tftp and nfs server.
>

Ok, this is when the server is on the same subnet and works ok. Am I
correct?

> If i use server from over subnet, pxe cant load pxeboot, and kernel can`t
> mount boot.nfsroot.path="/exp/fbsd71".
>

I thought you had said that you had gotten pxeboot to work across to
the other subnet and that it was the mount of "/" that then failed?
(It is that case where "boot.netif.gateway" needs to be checked to see
  that it has the gateway for the client's subnet.)

> About pxe google found http://www.appdeploy.com/faq/detail.asp?id=10
> As i understand router must make ip helper.
> I seen it in cisco routers, not freebsd.
>
If you haven't been able to get pxeboot to work when the server is on
a different subnet, I'm afraid I can't help with that.

rick