Method for distributing routing information for redundant connections, applicable in hierarchical Internet protocol networks (IP version IPv6) comprising a plurality of different autonomous systems which function as providers and are made up of a set of nodes configured with operation patterns common and consistent with relation to a set of networks, a border gateway routing protocol, BGP-4, being used in the communication between each AS by means of which the routing information is calculated in a distributed manner by each of the nodes of the network by means of a first instance of routing protocol BGP-4 to establish information exchange sessions, characterized in that it comprises the following phases: - introducing information in routers of a first AS and of a second AS, wherein no connection had been previously established between the first AS and the second AS and wherein the second AS is located in a higher hierarchical level than the first AS, the higher hierarchical level corresponding to the hierarchical level of a third AS which is the main provider of the first AS, the second AS and the third AS having in turn a fourth AS provider common to both belonging to a hierarchical level higher than the first hierarchical level of the second AS and third AS for establishing communication between the first AS and the second AS; - generating in the first AS a multi-provider service request to the second AS; - generating in the second AS a request to the fourth AS, the latter determining whether the information exchange session is authorized; - the fourth AS generates two new and independent BGP-4 pairing sessions upon receiving an information exchange authorization; - the first session being a session established between the fourth AS and the second AS, and - the second BGP-4 session being a session established between the second AS and the first AS; - the first AS, second AS and fourth AS establish an additional and independent BGP-4 session to send the new multi-provider information requested, - generating an additional and independent routing table in the first AS, second AS, and fourth AS with a lower priority with respect to the main routing table conventionally provided in the routing protocol BGP-4, - upon receiving a routing information, accessing the main table to establish the routing address to be followed, - accessing the additional routing table when it is detected that the routing address received does not correspond with the routing established in said main table, - using the routing address established in the additional table in the event of accessing said additional table; and - sending the established routing address to be followed, obtained from a table selected from the first table and the second table depending on the previous phases. - introducing information in routers of a first AS and of a second AS, wherein no connection had been previously established between the first AS and the second AS and wherein the second AS is located in a higher hierarchical level than the first AS, the higher hierarchical level corresponding to the hierarchical level of a third AS which is the main provider of the first AS, the second AS and the third AS having in turn a fourth AS provider common to both belonging to a hierarchical level higher than the first hierarchical level of the second AS and third AS for establishing communication between the first AS and the second AS; - generating in the first AS a multi-provider service request to the second AS; - generating in the second AS a request to the fourth AS, the latter determining whether the information exchange session is authorized; - the fourth AS generates two new and independent BGP-4 pairing sessions upon receiving an information exchange authorization; - the first session being a session established between the fourth AS and the second AS, and - the second BGP-4 session being a session established between the second AS and the first AS; - the first AS, second AS and fourth AS establish an additional and independent BGP-4 session to send the new multi-provider information requested, - generating an additional and independent routing table in the first AS, second AS, and fourth AS with a lower priority with respect to the main routing table conventionally provided in the routing protocol BGP-4, - upon receiving a routing information, accessing the main table to establish the routing address to be followed, - accessing the additional routing table when it is detected that the routing address received does not correspond with the routing established in said main table, - using the routing address established in the additional table in the event of accessing said additional table; and - sending the established routing address to be followed, obtained from a table selected from the first table and the second table depending on the previous phases.