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