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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 proto- col, and should allow for useful scripting of injected packets from simple shell scripts. nemesis-ospf provides an interface to craft and inject OSPF packets, allowing 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 cre- ate 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 characters 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 com- bined 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 frag- ments (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 in- jected packet. IP options can be up to 40 bytes in length. The IP options file must be created manually based upon the de- sired options. IP options can also be read from stdin by spec- ifying -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), nemesis-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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