Internet protocol based encryptor/decryptor bypass device

A method for bypassing network signaling protocol packets around a cryptographic device communicatively coupled between an ingress end user node and an egress end user node, comprising:

• receiving, by a bypass device, a packet comprising a transport layer protocol header from said ingress end user node;
• determining, at said bypass device, a type of a transport layer protocol used to transport said packet;
• parsing, at said bypass device, a signaling transport protocol identifier for a signaling transport protocol from said packet based on said type of said transport layer protocol;
• determining, at said bypass device, whether said signaling transport protocol identifier is a Next Step In Signaling (NSIS) Transport Level Protocol (NTLP) or an NSIS signaling transport protocol identifier;
• and
• bypassing said packet around said cryptographic device if said signaling transport protocol identifier is determined to be an NTLP or an NSIS signaling transport protocol identifier.

A method for bypassing network signaling protocol packets around a cryptographic device communicatively coupled between an ingress end user node and an egress end user node, comprising:

• receiving, by a bypass device, a packet comprising a transport layer protocol header from said ingress end user node;
• de-encapsulating, at said bypass device, a data link layer protocol header of said packet, a data link layer protocol trailer of said packet, a network layer protocol header of said packet, a network layer protocol trailer of said packet, a transport layer protocol header of said packet, and a transport layer protocol trailer of said packet;
• determining, at said bypass device, a type of a transport layer protocol used to transport said packet;
• parsing, at said bypass device, a signaling transport protocol identifier for a signaling transport protocol from said transport layer protocol header based on said type of said transport layer protocol;
• determining, at said bypass device, whether said signaling transport protocol identifier is a Next Step In Signaling (NSIS) Transport Level Protocol (NTLP) or an NSIS signaling transport protocol identifier;
• re-encapsulating said packet at said bypass device;
• and
• performing operations at said bypass device for communicating said packet to said cryptographic device only if said˜signaling transport protocol identifier is a protocol identifier other than an NTLP or an NSIS signaling transport protocol identifier;
• wherein said signaling transport protocol used to transport signaling information or enable control information exchange between said ingress end user node and said egress end user node.