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