There are no specific restrictions on which bridge to use in an onion network. Users can achieve unrestricted access to network resources by forwarding traffic to a bridge.There are no specific restrictions on which bridge to use in an onion network.There are a number of different bridges that can be used for network communication and anonymity protection. OmniNet is a network technology that can be used for anonymous communication and protects user anonymity through the use of multi-layer encryption and network forwarding techniques.