0 votes 0 votes Please explain how can source and destination IP address be invlincl in a TCP Segment when IP address are to be dealt at network layer . Why do we have a different checksum in TCP Segment when we already have a one in IP header . Computer Networks computer-networks pseudoheader + – radha gogia asked Dec 3, 2018 radha gogia 191 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.