ipsend(1) [netbsd man page]
IPSEND(1) General Commands Manual IPSEND(1) NAME
ipsend - sends IP packets SYNOPSIS
ipsend [ -dITUv ] [ -i <interface> ] [ -f <offset> ] [ -g <gateway> ] [ -m <MTU> ] [ -o <option> ] [ -P <protocol> ] [ -s <source> ] [ -t <dest. port> ] [ -w <window> ] <destination> [TCP-flags] DESCRIPTION
ipsend can be compiled in two ways. The first is used to send one-off packets to a destination host, using command line options to specify various attributes present in the headers. The destination must be given as the last command line option, except for when TCP flags are specified as a combination of A, S, F, U, P and R, last. The other way it may be compiled, with DOSOCKET defined, is to allow an attempt at making a TCP connection using a with ipsend resending the SYN packet as per the command line options. OPTIONS
-d enable debugging mode. -f <offset> The -f allows the IP offset field in the IP header to be set to an arbitrary value, which can be specified in decimal or hexadeci- mal. -g <gateway> Specify the hostname of the gateway through which to route packets. This is required whenever the destination host isn't directly attached to the same network as the host from which you're sending. -i <interface> Set the interface name to be the name supplied. -m <MTU> Specify the MTU to be used when sending out packets. This option allows you to set a fake MTU, allowing the simulation of network interfaces with small MTU's without setting them so. -o <option> Specify options to be included at the end of the IP header. An EOL option is automatically appended and need not be given. If an option would also have data associated with it (source as an IP# for a lsrr option), then this will not be initialised. -s <source> Set the source address in the packet to that provided - maybe either a hostname or IP#. -t <dest.port> Set the destination port for TCP/UDP packets. -w <window> Set the window size for TCP packets. -I Set the protocol to ICMP. -P <protocol> Set the protocol to the value given. If the parameter is a name, the name is looked up in the /etc/protocols file. -T Set the protocol to TCP. -U Set the protocol to UDP. -v enable verbose mode. SEE ALSO
ipresend(1), iptest(1), bpf(4), protocols(5), ipsend(5) DIAGNOSTICS
Needs to be run as root. BUGS
If you find any, please send email to me at darrenr@pobox.com IPSEND(1)
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IPTEST(1) General Commands Manual IPTEST(1) NAME
iptest - automatically generate packets to test IP functionality SYNOPSIS
iptest [ -1234567 ] [ -d <device> ] [ -g <gateway> ] [ -m <MTU> ] [ -p <pointtest> ] [ -s <source> ] <destination> DESCRIPTION
iptest ... OPTIONS
-1 Run IP test group #1. This group of tests generates packets with the IP header fields set to invalid values given other packet characteristics. The point tests are: 1 (ip_hl < ip_len), 2 (ip_hl > ip_len), 3 (ip_v < 4), 4 (ip_v > 4), 5 (ip_len < packetsize, long packets), 6 (ip_len > packet size, short packets), 7 (Zero length fragments), 8 (packet > 64k after reassembly), 9 (IP offset with MSB set), 10 (ttl variations). -2 Run IP test group #2. This group of tests generates packets with the IP options constructed with invalid values given other packet characteristics. The point tests are: 1 (option length > packet length), 2 (option length = 0). -3 Run IP test group #3. This group of tests generates packets with the ICMP header fields set to non-standard values. The point tests are: 1 (ICMP types 0-31 & 255), 2 (type 3 & code 0 - 31), 3 (type 4 & code 0, 127, 128, 255), 4 (type 5 & code 0, 127, 128, 255), 5 (types 8-10,13-18 with codes 0, 127, 128 and 255), 6 (type 12 & code 0, 127, 128, 129, 255) and 7 (type 3 & codes 9-10, 13-14 and 17-18 - shortened packets). -4 Run IP test group #4. This group of tests generates packets with the UDP header fields set to non-standard values. The point tests are: 1 (UDP length > packet size), 2 (UDP length < packetsize), 3 (sport = 0, 1, 32767, 32768, 65535), 4 (dport = 0, 1, 32767, 32768, 65535) and 5 (sizeof(struct ip) <= MTU <= sizeof(struct udphdr) + sizeof(struct ip)). -5 Run IP test group #5. This group of tests generates packets with the TCP header fields set to non-standard values. The point tests are: 1 (TCP flags variations, all combinations), 2 (seq = 0, 0x7fffffff, 0x8000000, 0xa0000000, 0xffffffff), 3 (ack = 0, 0x7fffffff, 0x8000000, 0xa0000000, 0xffffffff), 4 (SYN packet with window of 0, 32768, 65535), 5 (set urgent pointer to 1, 0x7fff, 0x8000, 0xffff), 6 (data offset), 7 (sport = 0, 1, 32767, 32768, 65535) and 8 (dport = 0, 1, 32767, 32768, 65535). -6 Run IP test group #6. This test generates a large number of fragments in an attempt to exhaust the network buffers used for holding packets for later reassembly. WARNING: this may crash or cause serious performance degradation to the target host. -7 Run IP test group #7. This test generates 1024 random IP packets with only the IP version, checksum, length and IP offset field correct. -d <interface> Set the interface name to be the name supplied. -g <gateway> Specify the hostname of the gateway through which to route packets. This is required whenever the destination host isn't directly attached to the same network as the host from which you're sending. -m <MTU> Specify the MTU to be used when sending out packets. This option allows you to set a fake MTU, allowing the simulation of network interfaces with small MTU's without setting them so. -p <test> Run a... SEE ALSO
ipresend(1), ipsend(1), bpf(4), ipsend(5) DIAGNOSTICS
Only one of the numeric test options may be given when iptest is run. Needs to be run as root. BUGS
If you find any, please send email to me at darrenr@pobox.com IPTEST(1)