Parallel Internet measurement utility
Scamper is a program that is able to conduct Internet measurement
tasks to large numbers of IPv4 and IPv6 addresses, in parallel, to
fill a specified packets-per-second rate. Currently, it supports the
well-known ping and traceroute techniques, as well as MDA traceroute,
alias resolution, some parts of tbit, sting, and neighbour discovery.
Scamper can do ICMP-based Path MTU discovery. scamper starts with the
outgoing interface's MTU and discovers the location of Path MTU
bottlenecks. scamper performs a PMTUD search when an ICMP
fragmentation required message is not returned to establish the PMTU
to the next point in the network, followed by a TTL limited search to
infer where the failure appears to occur.
- Developed at network:utilities
- Sources inherited from project openSUSE:Factory
-
2
derived packages
- Download package
-
Checkout Package
osc -A https://api.opensuse.org checkout openSUSE:Backports:SLE-15-SP4:FactoryCandidates/scamper && cd $_
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Source Files
Filename | Size | Changed |
---|---|---|
scamper-cvs-20240229.tar.gz | 0002819683 2.69 MB | |
scamper.changes | 0000037946 37.1 KB | |
scamper.spec | 0000005939 5.8 KB |
Latest Revision
- update to 20240229: * bugfix: correct SCAMPER_DL_IS_ICMP_TIME_REPLY macro so that scamper does not ignore ICMP replies quoting TCP/UDP packets for 1/256 source port values. * bugfixes for -O icmp-rxerr: handle EPOLLERR on linux, try using IPV6_RECVHOPLIMIT before IPV6_HOPLIMIT for IPv6 udp probing. * bugfix: fix possible assertions in dealias, trace, and tracelb code. * ping: count UDP replies as from the target * trace: correct datalink timestamp adjustments * add more specific error messages when a scamper command is not accepted, return them over control socket or terminal, as appropriate. * scamper_fd_t: refactor fd_addr, fd_sport, fd_dl, fd_ifindex * scamper_fd_t: decouple udp4raw/udp4dg from each other. use udp4dg and udp6 sockets in udpprobe primitive, rather than have each udpprobe task create its own socket. * scamper_fd_t: add methods that return an available open socket for probing a given destination without blocking if another task is probing the same destination. use this with ping -F 0 and trace -s 0, instead of generating random port values, so that scamper opens the minimum number of file descriptors. * ping and trace: have -O dl mean to capture transmit and receive timestamps from a datalink interface. add -O raw option so that IPv4 TCP probes can be transmitted over a raw socket, to allow transmitted TCP packets to be observed on the datalink interface. * add memory-mapped ring buffer support (PACKET_RX_RING) for receiving packets on datalink sockets on Linux. enable at scamper runtime with -O ring. contributed by Alistair King. ## python module: * generate module .c with Cython 0.29.37, to enable module to compile with Python 3.11.
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