I got the DOC working with LRP, but haven't had time to add the USB support to add the second NIC to the system yet. I am using the Dachstein version with 2.2.19 kernel.
I got side track after getting the DOC support from M-SYS working in the 2.2.19 kernel and wanted to try the MTD driver instead so it will be better for distribution. For the MTD drivers, I decided to go with the BERING version since it is using the 2.4.X kernel and the MTD drivers will work as a Module with this kernel. So far, I can get the DOC recognized in Linux with the MTD drivers, but for the life of me, it won't let me create a FAT partition to use with SYSLINUX. Without this ability, I have not been able to get LRP on the DOC in a format that is distributable.
I have not found any information regarding if the MTD drivers support the creation of a FAT partition and the ability to run Linux from a FAT partition with SYSLINUX created using the MTD drivers yet. I have not had any problems with the DOC drivers from M-SYS, but I am trying to keep away from having to distribute anything with the M-SYS drivers on it if possible.
I can't say how long this may be, before I get something working. I've been extremely busy lately and have not had much time to devote to this hobby.