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NAME nemesis-ospf -- OSPF Protocol (The Nemesis Project) SYNOPSIS nemesis-ospf [-vZ?] [-p TYPE] [-N ADDR] [-i SEC] [-l SEC] [-z LEN] [-x TYPE] [-B NUM] [-P FILE] [-L ADDR] [-u NUM] [-j ADDR] [-k DATA] [-y TYPE] [-w TOS] [-m METRIC] [-f ADDR] [-g TAG] [-L ADDR] [-n MASK] [-h ADDR] DESCRIPTION nemesis is designed to be a command line-based, portable human IP stack for UNIX-like and Windows systems. The suite is broken down by protocol, and should allow for useful scripting of injected packets from simple shell scripts. nemesis-ospf provides an interface to craft and inject OSPF packets, allow- ing the the user to specify any portion of an OSPF packet, as well as lower-lever IP packet information. OSPF Options -m METRIC OSPF Metric -s NUM OSPF Sequence Number -r ADDR OSPF Advertising Router Address -n MASK OSPF Netmask -o OPT OSPF Options, 1 byte value -R ADDR OSPF Source Router ID -A ADDR OSPF Area ID, e.g. 0.0.0.1, default 0.0.0.0 -P FILE Filename to read for raw (HEX) OSPF packet payload, appended after selected packet type. I.e., can be used with -pU to create multi LSA Link State Updates. -v Display the injected packet in human readable form. Use twice to see a hexdump of the injected package with printable ASCII charac- ters on the right. Use three times for a hexdump without decoded ASCII. OSPF Packet Types -p TYPE -pH Hello -pD Database Description -pR Link State Request -pU Link State Update -pUR Router Links Advertisement -pUN Network Links Advertisement -pUS IP Summary Links Advertisement -pUE AS External Link Advertisement OSPF HELLO options -N ADDR Neighbor Router Address -i SEC Dead Router Interval, seconds -P SEC OSPF Interval, seconds OSPF Database Description (DBD) options -z LEN OSPF Maximum Datagram Length -x TYPE OSPF DBD Exchange Type OSPF Link State Update (LSU) options -B NUM Number of Link State Advertisements (LSAs) to broadcast -P FILE RAW payload file with LSAs, in plain -pU mode OSPF Router LSA options -L -AR -ADDR Link State ID: Originating Router ID (IP address) -u NUM Number of links, default 1 -j ADDR Link ID -k DATA Link data -y TYPE Link type, default 1 -w TOS Link TOS number, default 0 -m METRIC Link TOS (0) metric (2 bytes) OSPF Autonomous System External LSA options -f ADDR Forward Address -g TAG External route tag OSPF Network LSA options -L ADDR Link State ID: Originating Router ID (IP address) -n MASK Netmask -h ADDR Attached Router (IP address) OSPF Summary LSA (IP Network) options -L ADDR Link State ID: Network route to summarize -n MASK Netmask of route -c NUM Cost of this route (4 bytes) Generic LSA options for LSR and LSU packets -G LSA_Age Link State Advertisement Age. -L ADDR Link State ID, usually the Router ID of the originating router -r ADDR Advertising Router Address -s NUM Sequence Number -n MASK Multi-purpose netmask IP OPTIONS -S ADDR Specify the source address within the IP header. -D ADDR Specify the destination address within the IP header. Defaults to the link-local multicast address 224.0.0.5 (All OSPF Routers). -F OPT Specify the IP header fragmentation options: -FD don't fragment -FM more fragments -FR reserved flag -F offset IP fragmentation options can be specified individually or combined into a single argument to the -F command line switch by separating the options with commas (eg. -FD,M) or spaces (eg. -FM 223). The IP fragmentation offset is a 13-bit field with valid values from 0 to 8189. Don't fragment (DF), more fragments (MF) and the reserved flag (RESERVED or RB) are 1-bit fields. NOTE: Under normal conditions, the reserved flag is unset. -I ID Specify the IP ID within the IP header. -O FILE This will cause nemesis-ospf to use the specified IP options file as the options when building the IP header for the injected packet. IP options can be up to 40 bytes in length. The IP options file must be created manually based upon the desired options. IP op- tions can also be read from stdin by specifying -O- instead. -S ADDR Specify the source IP address within the IP header. -t TOS Specify the IP type of service (TOS) within the IP header. Valid type of service values: 2 Minimize monetary cost 4 Maximize reliability 8 Maximize throughput 24 Minimize delay NOTE: Under normal conditions, only one type of service is set within a packet. To specify multiple types, specify the sum of the desired values as the type of service. -T TTL Specify the IP time-to-live (TTL) in the IP header. DATA LINK OPTIONS -d IFNAME Specify the name (for UNIX-like systems) or the number (for Windows systems) of the IFNAME to use (eg. fxp0, eth0, hme0, 1). -H MAC Specify the source MAC address, (XX:XX:XX:XX:XX:XX). -M MAC Specify the destination MAC address, (XX:XX:XX:XX:XX:XX). -Z Lists the available network interfaces by number for use in link- layer injection. NOTE: This feature is only relevant to Windows systems. DIAGNOSTICS nemesis-ospf returns 0 on a successful exit, 1 if it exits on an error. SEE ALSO nemesis-arp(1), nemesis-dhcp(1), nemesis-dns(1), nemesis-ethernet(1), neme- sis-icmp(1), nemesis-igmp(1), nemesis-ip(1), nemesis-rip(1), nemesis- tcp(1), nemesis-udp(1). AUTHORS Mark Grimes <mark@stateful.net>, Jeff Nathan <jeff@snort.org> and Joachim Nilsson <troglobit@gmail.com> BUGS Please report at https://github.com/libnet/nemesis/issues Dec 15, 2019 nemesis-ospf(1)
NAME | SYNOPSIS | DESCRIPTION | OSPF Options | IP OPTIONS | DATA LINK OPTIONS | DIAGNOSTICS | SEE ALSO | AUTHORS | BUGS
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