netifrc: how do I retry dhcp negotiation

[szatox]

So, I have an rpi and a router connected to the same power socket, and the router boots slower than the rpi when power comes up.
Since DHCP server is not ready when IP is requested, I end up with APIPA address instead and without gateway and all the good stuff. And I wonder, is there any trick inside netifrc that would let it keep trying until it succeeds?

Now, APIPA fallback does come in handy too once in a while, so I don't really want to disable it completely, but a single interface can have multiple addresses, so maybe I could have both of them work independently? I don't know, just thinking out loud.
Should everything else fail, I can always resort to a crude script launched from cron, but maybe there is a better way?

My conf.d/net config contains nothing related to eth0. The defaults are almost perfect, it just gives up too easily.

[pietinger]

I found this in /usr/share/doc/netifrc-0.7.13/net.example.bz2

# DHCP
# DHCP can be provided by dhclient, dhcpcd, or udhcpc.
#
# dhclient: emerge net-misc/dhcp
# dhcpcd: emerge net-misc/dhcpcd
# udhcpc: emerge sys-apps/busybox

# If you have more than one DHCP client installed, you need to specify which
# one to use - otherwise we default to dhcpcd if available.
#modules="dhclient" # to select dhclient over dhcpcd
#
# Notes:
# - All clients send the current hostname to the DHCP server by default
# - dhcpcd does not daemonize when the lease time is infinite
# - udhcp-0.9.3-r3 and earlier do not support getting NTP servers
# - DHCP tends to erase any existing device information - so add
# static addresses after dhcp if you need them
# - dhclient and udhcpc can set other resolv.conf options such as "option"
# and "sortlist"- see the System module for more details

# Regardless of which DHCP client you prefer, you configure them the
# same way using one of following depending on which interface modules
# you're using.
#config_eth0="dhcp"

# For passing custom options to dhcpcd use something like the following. This
# example reduces the timeout for retrieving an address from 60 seconds (the
# default) to 10 seconds.
#dhcpcd_eth0="-t 10"

[...]

So , if you use dhcpcd maybe try a "-t 600"?