LBL
IP Header Side Channel4-bit
Version4-bit
HeaderLength
8-bitType of Service
(TOS)16-bit Total Length (Bytes)
16-bit Identification3-bitFlags 13-bit Fragment Offset
8-bit Time to Live (TTL) 8-bit Protocol 16-bit Header Checksum
32-bit Source IP Address
32-bit Destination IP Address
Payload
ID field issupposed to beunique per IPpacket.
One easy way todo this: incrementit each timesystem sends anew packet.
SYN-ACK
SYN-ACK
SYN-ACK
SYN-ACK
SYN-ACK
Spoofed
SYN-ACK
SYN-ACK
SYN-ACK
Upon receiving RST,Patsy ignores it and doesnothing, per TCP spec.
SYN-ACK
SYN-ACK
SYN-ACK
SYN-ACKSpoofed
SYN-ACK
SYN-ACK
10s of seconds later
1 month later
If orders are timer-driven, expectnarrow range of timing errorsreflecting batch size.
If skewed by outliers, expectup/down or down/up trend aroundoutlier.
If orders not timer-driven, then wejust see residuals with respect tounderlying order rate ⇒ shouldhave a cloud of points