--- name: "nemesis-ospf" section: "1" platform: "linux" package: "nemesis" version: "1:1.4-1" release: "Debian 5.0 (Lenny)" platforms: ["linux"] url: "https://new.carta.tech/nemesis-ospf" --- # nemesis-ospf(1) OSPF Protocol (The Nemesis Project) ## NAME nemesis-ospf - OSPF Protocol (The Nemesis Project) ## SYNOPSIS **nemesis-ospf** \[-vZ\] \[*optlist*\] ## DESCRIPTION **The Nemesis Project** 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. ### OSPF Packet Types - **-p** *OSPF Protocol (-pH, -pL, -pR)* Hello (-pH), Database Description (-pD), Link State Request (-pL), Link State Update (-pU), Router Links Advertisement (-pR), Network Links Advertisement (-pN), IP Summary Links Advertisement (-pM), AS External Link Advertisement (-pA), ### OSPF HELLO options - **-N** *Neighbor Router Address* Neighbor Router Address. - **-i** *Dead Router Interval* Dead Router Interval. - **-l** *OSPF Interval* OSPF Interval. ### OSPF Database Description (DBD) options - **-z** *MAX DGRAM Length* OSPF Maximum Datagram Length - **-x** *Exchange Type* OSPF DBD Exchange Type ### OSPF Link State Update (LSU) options - **-x** *Num LSAs to bcast* Number of Link State Advertisements to broadcast ### OSPF Link State Advertisement (LSA) related options **-L** *Router ID* Router ID for Link State Advertisement packets. - **-G** *LSA Age* Link State Advertisement Age. ### OSPF Router Links Advertisement (LSA\_RTR) options **-u** *LSA\_RTR Number* Router Links Advertisement Number - **-y** *LSA\_RTR Router Type* Router Links Advertisement Router Type - **-k** *LSA\_RTR Router Data* Router Links Advertisement Router Data ### OSPF Autonomous System External Link Advertisement (LSA\_AS\_EXT) options **-f** *LSA\_AS\_EXT Forward Address* Autonomous System Forward Address - **-g** *LSA\_AS\_EXT Tag* Autonomous System Tag ### OSPF options **-m** *OSPF Metric* OSPF Metric - **-s** *OSPF Sequence Number* OSPF Sequence Number - **-r** *OSPF Advertising Router Address* OSPF Advertising Router Address - **-n** *OSPF Netmask* OSPF Netmask Address - **-O** *OSPF Options* OSPF Options - **-R** *OSPF Router ID* OSPF Router Identifier - **-A** *OSPF Area ID* OSPF Area Identifier - **-P** *Payload File* Filename to read for packet payload. - Display the injected packet in human readable form. Use twice to see a hexdump - \-v verbose-mode of the injected package with printable ASCII characters on the right. Use three times for a hexdump without decoded ASCII. ## IP OPTIONS - \-D destination-IP-address Specify the *destination-IP-address* within the IP header. - \-F fragmentation-options (-F\[D\],\[M\],\[R\],\[offset\]) Specify the *fragmentation options:* ``` -FD (don't fragment) -FM (more fragments) -FR (reserved flag) -F ``` within the IP header. 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 IP-ID Specify the *IP-ID* within the IP header. - \-O IP-options-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 options can also be read from stdin by specifying '-O -' instead of an IP-options-file. - \-S source-IP-address Specify the *source-IP-address* within the IP header. *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 IP-TTL Specify the *IP-time-to-live (TTL)* within the IP header. ## DATA LINK OPTIONS - \-d Ethernet-device Specify the name (for UNIX-like systems) or the number (for Windows systems) of the *Ethernet-device* to use (eg. fxp0, eth0, hme0, 1). - \-H source-MAC-address Specify the *source-MAC-address* (XX:XX:XX:XX:XX:XX). - \-M destination-MAC-address Specify the *destintion-MAC-address* (XX:XX:XX:XX:XX:XX). - \-Z list-network-interfaces 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. ## BUGS Send concise and clearly written bug reports to jeff@snort.org ## AUTHOR Jeff Nathan \ Originally developed by Mark Grimes \ ## SEE ALSO **[nemesis-arp(1)](/nemesis-arp/1.md), [nemesis-dns(1)](/nemesis-dns/1.md), [nemesis-ethernet(1)](/nemesis-ethernet/1.md), [nemesis-icmp(1)](/nemesis-icmp/1.md),** **[nemesis-igmp(1)](/nemesis-igmp/1.md), [nemesis-ip(1)](/nemesis-ip/1.md), [nemesis-rip(1)](/nemesis-rip/1.md), [nemesis-tcp(1)](/nemesis-tcp/1.md),** **[nemesis-udp(1)](/nemesis-udp/1.md)**