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