Something like this? (not tested much)
Code:
awk '
/TXADDR/ { txaddr=$NF }
/RXADDR/ { rxaddr=$NF }
/TXDATA/ { txdata[txaddr,++txindex[txaddr]]=$NF }
/RXDATA/ {
if ($NF != txdata[rxaddr,++rxindex[rxaddr]]) {
print "rxdata " $NF " for address " rxaddr " does not match transmitted: " txdata[rxaddr,rxindex[rxaddr]]
}
}
' inputfile
