The onlu solution I can think of to your problem is to create default routes with all the possible combinations. For example, if you have 3 modems you will create route #1 (1-2-3), route#2 (1-2), route#3 (1-3), route#4 (2-3), route#5 (1), route#6 (2), route#7 (3) Route #1 will have distance 1 Routes...