Well, if you can access the LS after flashing then you're in good shape -- congrats! So you shouldn't have to worry about the DHCP setting any more.

After flashing to FreeLink I had to temporarily add the following two lines to /etc/hosts so that the LS would know where to find the packages I was trying to get with apt-get. Later on I was able to get it to resolve normally, though right now I don't remember how.

194.109.137.218 security.debian.org
204.152.191.7 mirrors.kernel.org