Figure 9-137 UDP datagram format RawIP RawIP only fills in certain fields of an IP header and allows an application to provide its own IP header. Similar to UDP, RawIP is unreliable. No control mechanism is available to verify whether a RawIP datagram is received. RawIP is connectionless, an...
1. The forwarding router at the tunnel source receives a 1500-byte datagram with DF = 1 from the sending host. IPv41480 bytes TCP + data 2. Since the DF bit is set, and the datagram size (1500 bytes) is greater than the GRE tunnel IPv4 MTU (1476), the router drops the datagra...
Figure 9-136 UDP datagram format RawIP RawIP only fills in certain fields of an IP header and allows an application to provide its own IP header. Similar to UDP, RawIP is unreliable. No control mechanism is available to verify whether a RawIP datagram is received. RawIP is connectionless, an...
The DD packet format: Figure 3-11 DD packet format Major fields: l Interface MTU: Size in bytes of the largest IP datagram that can be sent out the associated interface, without fragmentation. l I (Initial) The Init bit, which is set to 1 if the packet is the first packet of databa...
RIP v1 Message Format RIP messages are sent as User Datagram Protocol (UDP) messages from the router interface IP address and UDP port 520 to the subnet broadcast IP address and UDP port 520. The RIP v1 message consists of a 4-byte RIP header and up to 25 RIP routes. The maximum...
RIP v1 Message Format RIP messages are sent as User Datagram Protocol (UDP) messages from the router interface IP address and UDP port 520 to the subnet broadcast IP address and UDP port 520. The RIP v1 message consists of a 4-byte RIP header and up to 25 RIP routes. The maximum...
• Source and destination ports: These may be individual TCP or User Datagram Protocol (UDP) port values, an enumerated list of ports, or a wildcard port. • IPv6 class: This class is obtained from the IPv6 header. It may be a specific IPv6 Class value or a wildcard value. •...
Figure 9-136 UDP datagram format RawIP RawIP only fills in certain fields of an IP header and allows an application to provide its own IP header. Similar to UDP, RawIP is unreliable. No control mechanism is available to verify whether a RawIP datagram is received. RawIP is connectionless, an...
Figure 9-136 UDP datagram format RawIP RawIP only fills in certain fields of an IP header and allows an application to provide its own IP header. Similar to UDP, RawIP is unreliable. No control mechanism is available to verify whether a RawIP datagram is received. RawIP is connectionless, an...
As used herein, a packet may refer to a communication structure for communicating information, such as a protocol data unit (PDU), a network packet, a frame, a datagram, a segment, a message, a block, a cell, a frame, a subframe, a slot, a symbol, a portion of any of the above...