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