probe::netfilter.ip.post_routing — Called immediately before an outgoing IP packet leaves the computer
netfilter.ip.post_routing
ackTCP ACK flag (if protocol is TCP; ipv4 only)
sportTCP or UDP source port (ipv4 only)
lengthThe length of the packet buffer contents, in bytes
iphdrAddress of IP header
saddrA string representing the source IP address
urgTCP URG flag (if protocol is TCP; ipv4 only)
nf_stolenConstant used to signify a 'stolen' verdict
ipproto_udpConstant used to signify that the packet protocol is UDP
outdev_nameName of network device packet will be routed to (if known)
pfProtocol family -- either “ipv4” or “ipv6”
nf_repeatConstant used to signify a 'repeat' verdict
indevAddress of net_device representing input device, 0 if unknown
indev_nameName of network device packet was received on (if known)
pshTCP PSH flag (if protocol is TCP; ipv4 only)
daddrA string representing the destination IP address
dportTCP or UDP destination port (ipv4 only)
data_strA string representing the packet buffer contents
data_hexA hexadecimal string representing the packet buffer contents
nf_dropConstant used to signify a 'drop' verdict
nf_acceptConstant used to signify an 'accept' verdict
rstTCP RST flag (if protocol is TCP; ipv4 only)
nf_stopConstant used to signify a 'stop' verdict
finTCP FIN flag (if protocol is TCP; ipv4 only)
synTCP SYN flag (if protocol is TCP; ipv4 only)
familyIP address family
protocolPacket protocol from driver (ipv4 only)
nf_queueConstant used to signify a 'queue' verdict
ipproto_tcpConstant used to signify that the packet protocol is TCP
outdevAddress of net_device representing output device, 0 if unknown