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