diff options
Diffstat (limited to 'astraceroute.8')
| -rw-r--r-- | astraceroute.8 | 146 |
1 files changed, 73 insertions, 73 deletions
diff --git a/astraceroute.8 b/astraceroute.8 index aedf730..fc999aa 100644 --- a/astraceroute.8 +++ b/astraceroute.8 @@ -7,7 +7,7 @@ astraceroute \- autonomous system trace route utility .PP .SH SYNOPSIS .PP -\fBastraceroute\fR [\fIoptions\fR] +\fBastraceroute\fP [\fIoptions\fP] .PP .SH DESCRIPTION astraceroute is a small utility to retrieve path information in a traceroute @@ -29,133 +29,133 @@ keywords. This tool might be a good start for further in-depth analysis of such systems. .PP .SH OPTIONS -.PP -.SS -H <host>, --host <host> +.TP +.B -H <host>, --host <host> Hostname or IPv4 or IPv6 address of the remote host where the AS route should -be traced to. In the case of an IPv6 address or host, option ''\-6'' must be +be traced to. In the case of an IPv6 address or host, option \fB-6\fP must be used. IPv4 is the default. -.PP -.SS -p <port>, --port <port> +.TP +.B -p <port>, --port <port> TCP port for the remote host to use. If not specified, the default port used is 80. -.PP -.SS -i <device>, -d <device>, --dev <device> +.TP +.B -i <device>, -d <device>, --dev <device> Networking device to start the trace route from, e.g. eth0, wlan0. -.PP -.SS -b <IP>, --bind <IP> +.TP +.B -b <IP>, --bind <IP> IP address to bind to other than the network device's address. You must specify -\-6 for an IPv6 address. -.PP -.SS -f <ttl>, --init-ttl <ttl> +\fB-6\fP for an IPv6 address. +.TP +.B -f <ttl>, --init-ttl <ttl> Initial TTL value to be used. This option might be useful if you are not interested in the first n hops, but only the following ones. The default initial TTL value is 1. -.PP -.SS -m <ttl>, --max-ttl <ttl> +.TP +.B -m <ttl>, --max-ttl <ttl> Maximum TTL value to be used. If not otherwise specified, the maximum TTL value is 30. Thus, after this has been reached astraceroute exits. -.PP -.SS -q <num>, --num-probes <num> +.TP +.B -q <num>, --num-probes <num> Specifies the number of queries to be done on a particular hop. The default is 2 query requests. -.PP -.SS -x <sec>, --timeout <sec> +.TP +.B -x <sec>, --timeout <sec> Tells astraceroute the probe response timeout in seconds, in other words the maximum time astraceroute must wait for an ICMP response from the current hop. The default is 3 seconds. -.PP -.SS -X <string>, --payload <string> +.TP +.B -X <string>, --payload <string> Places an ASCII cleartext string into the packet payload. Cleartext that contains whitespace must be put into quotes (e.g.: "censor me"). -.PP -.SS -l <len>, --totlen <len> +.TP +.B -l <len>, --totlen <len> Specifies the total length of the packet. Payload that does not have a cleartext string in it is padded with random garbage. -.PP -.SS -4, --ipv4 +.TP +.B -4, --ipv4 Use IPv4 only requests. This is the default. -.PP -.SS -6, --ipv6 +.TP +.B -6, --ipv6 Use IPv6 only requests. This must be used when passing an IPv6 host as an argument. -.PP -.SS -n, --numeric +.TP +.B -n, --numeric Tells astraceroute to not perform reverse DNS lookup for hop replies. The -reverse option is ''\-N''. -.PP -.SS -u, --update +reverse option is \fB-N\fP. +.TP +.B -u, --update The built-in geo-database update mechanism will be invoked to get Maxmind's latest version. To configure search locations for databases, the file /etc/netsniff-ng/geoip.conf contains possible addresses. Thus, to save bandwidth or for mirroring Maxmind's databases (to bypass their traffic limit policy), different hosts or IP addresses can be placed into geoip.conf, separated by a newline. -.PP -.SS -L, --latitude +.TP +.B -L, --latitude Also show latitude and longitude of hops. -.PP -.SS -N, --dns +.TP +.B -N, --dns Tells astraceroute to perform reverse DNS lookup for hop replies. The -reverse option is ''\-n''. -.PP -.SS -S, --syn +reverse option is \fB-n\fP. +.TP +.B -S, --syn Use TCP's SYN flag for the request. -.PP -.SS -A, --ack +.TP +.B -A, --ack Use TCP's ACK flag for the request. -.PP -.SS -F, --fin +.TP +.B -F, --fin Use TCP's FIN flag for the request. -.PP -.SS -P, --psh +.TP +.B -P, --psh Use TCP's PSH flag for the request. -.PP -.SS -U, --urg +.TP +.B -U, --urg Use TCP's URG flag for the request. -.PP -.SS -R, --rst +.TP +.B -R, --rst Use TCP's RST flag for the request. -.PP -.SS -E, --ecn-syn +.TP +.B -E, --ecn-syn Use TCP's ECN flag for the request. -.PP -.SS -t <tos>, --tos <tos> +.TP +.B -t <tos>, --tos <tos> Explicitly specify IP's TOS. -.PP -.SS -G, --nofrag +.TP +.B -G, --nofrag Set IP's no fragmentation flag. -.PP -.SS -Z, --show-packet +.TP +.B -Z, --show-packet Show and dissect the returned packet. -.PP -.SS -v, --version +.TP +.B -v, --version Show version information and exit. -.PP -.SS -h, --help +.TP +.B -h, --help Show user help and exit. .PP .SH USAGE EXAMPLE -.PP -.SS astraceroute -i eth0 -N -S -H netsniff-ng.org +.TP +.B astraceroute -i eth0 -N -S -H netsniff-ng.org This sends out a TCP SYN probe via the ''eth0'' networking device to the remote IPv4 host netsniff-ng.org. This request is most likely to pass. Also, tell astraceroute to perform reverse DNS lookups for each hop. -.PP -.SS astraceroute -6 -i eth0 -S -E -N -H www.6bone.net +.TP +.B astraceroute -6 -i eth0 -S -E -N -H www.6bone.net In this example, a TCP SYN/ECN probe for the IPv6 host www.6bone.net is being performed. Also in this case, the ''eth0'' device is being used as well as a reverse DNS lookup for each hop. -.PP -.SS astraceroute -i eth0 -N -F -H netsniff-ng.org +.TP +.B astraceroute -i eth0 -N -F -H netsniff-ng.org Here, we send out a TCP FIN probe to the remote host netsniff-ng.org. Again, on each hop a reverse DNS lookup is being done and the queries are transmitted from ''eth0''. IPv4 is used. -.PP -.SS astraceroute -i eth0 -N -FPU -H netsniff-ng.org +.TP +.B astraceroute -i eth0 -N -FPU -H netsniff-ng.org As in most other examples, we perform a trace route to IPv4 host netsniff-ng.org and do a TCP Xmas probe this time. -.PP -.SS astraceroute -i eth0 -N -H netsniff-ng.org -X "censor-me" -Z +.TP +.B astraceroute -i eth0 -N -H netsniff-ng.org -X "censor-me" -Z In this example, we have a Null probe to the remote host netsniff-ng.org, port 80 (default) and this time, we append the cleartext string "censor-me" into the packet payload to test if a firewall or DPI will let this string pass. Such a trace @@ -173,8 +173,8 @@ http://bgp.he.net/AS<number>. .SH BUGS The geographical locations are estimated with the help of Maxmind's GeoIP database and can differ from the real physical location. To decrease the -possible errors, update the database regularly using astraceroute's \-\-update -option. +possible errors, update the database regularly using astraceroute's +\fB--update\fP option. .PP At some point in time, we need a similar approach to gather more reliable path information such as in the paris-traceroute tool. |