// and Vecs are way more memory-effecient in that case.
v4_table: HashMap<V4Addr, Vec<(u32, Route)>>,
v6_table: HashMap<V6Addr, Vec<(u32, Route)>>,
// and Vecs are way more memory-effecient in that case.
v4_table: HashMap<V4Addr, Vec<(u32, Route)>>,
v6_table: HashMap<V6Addr, Vec<(u32, Route)>>,