Anaconda static network setup in RHEL6

Hello,

I am trying to boot RHEL 6.x Anaconda on a system with multiple NICs. I
don't know how they will be initialized, therefore I have no idea what
ends up with eth0 and eth1 etc. But I know MAC address of the card I
want to provision with (download the kickstart) and I have IPv4
credentials.

Now, the documentation is a little bit fuzzy here. I was digging in the
Anaconda codebase. But no luck:

https://access.redhat.com/documentation/en-
US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/ap-a
dmin-options.html#sn-boot-options-network

Anaconda never configures me the proper device and always keep asking
to do manual network configuration. What is the trick here?

These are the variations I tried:

ks=http://myhost/my_kickstart.ks kssendmac ip=192.168.100.68 
netmask=255.255.255.0
gateway=192.168.100.1 dns=192.168.100.1 ksdevice=52:54:00:11:86:41

ks=http://myhost/my_kickstart.ks kssendmac ip=192.168.100.68 
netmask=255.255.255.0
gateway=192.168.100.1 dns=192.168.100.1 ifname=pr0:52:54:00:11:86:41 
ksdevice=pr0

ks=http://myhost/my_kickstart.ks kssendmac ip=192.168.100.68 
netmask=255.255.255.0
gateway=192.168.100.1 dns=192.168.100.1 ifname=pr0:52:54:00:11:86:41

ks=http://myhost/my_kickstart.ks kssendmac ip=192.168.100.68 
netmask=255.255.255.0
gateway=192.168.100.1 dns=192.168.100.1 BOOTIF=00-52-54-00-11-86-41

I am also interested in doing the same on RHEL7 and no luck either!
Tried combinations like:

... ip=192.168.100.68::192.168.100.1:255.255.255.0:::none BOOTIF=00-52-54-
00-11-86-41
... ip=192.168.100.68::192.168.100.1:255.255.255.0::52:54:00:11:86:41:none

In this case it's even worse, getting "System halted" dracut errors and
it does not make it into Anaconda.

Thanks for help!

-- lz