Q54

Consider an IP packet with a length of $4,500\;\text{bytes}$ that includes a $20\text{-byte}\;\textsf{IPv4}$ header and a $40\text{-byte}$ TCP header. The packet is forwarded to an $\textsf{IPv4}$ router that supports a Maximum Transmission Unit (MTU) of $600\;\text{bytes}$. Assume that the length of the IP header in all the outgoing fragments of this packet is $20\;\text{bytes}$. Assume that the fragmentation offset value stored in the first fragment is $0$. The fragmentation offset value stored in the third fragment is ________.