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