Dmitry Butskoy

Sebastian Moeller wrote: FreeBSD's traceroute for IPv4 (a different bninary from traceroute6) has a very interesting diagnostiuc/debug mode that allows to record and then analyse modification to the IP header along a path: Unfortunately we don't have access to the raw IP headers anyway due to implementation limitations. All information is obtained only by the recvmsg(2) system call with the MSG_ERRQUEUE flag set. This way allows unprivileged users to use "udp" and/or "icmp/echo" traces without having...

RFC-3484: Traceroute should defaults to IPv6 instead of IPv4 if possible

Fixed in 2.1.6 .

Enable large file support (LFS)

Jan Macku wrote: Traceroute defaults to IPv4 addresses even when IPv6 addresses are available. While there is the traceroute6 option, The RFC below appears to indicate that this should not be the case. RFC-3484 - Default Address Selection for Internet Protocol version 6 (IPv6) https://www.rfc-editor.org/info/rfc3484 Well, sounds reasonable, since ping(8) has long used the results of getaddrinfo(3) to determine the default address family. Can you imagine some negative use cases in practice due to...

Taoyu Saijo wrote: To be compatible with large file support shall we consider compiling the project with the following flags? |-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE| |Traceroute does not use filesystems in any way in its work. So nothing special in this context -- just use the standard compiler flags from your Linux distribution. ~buc |

Add option to display MSS TCP option

Very thanks for the idea! Implemented now in 2.1.4