net/tcpmssd 1.1_2 FreeBSD
Utility to correct requested TCP receive segment size
- System
- FreeBSD
- Repository
- FreeBSD ports
- Maintainer
- [email protected]
- Categories
- net
- Package size
- 7.0 KiB, 11.2 KiB installed
Description
tcpmssd was written by Ruslan Ermilov <[email protected]> based on work done by Patrick Bihan-Faou <[email protected]>.
tcpmssd is a divert(4) program that adjusts outgoing TCP data so that the requested segment size is not greater than the amount allowed by the interface MTU.
This is necessary in many setups to avoid problems caused by routers that drop ICMP Datagram Too Big messages. Without these messages, the originating machine sends data, it passes the rogue router then hits a machine that has an MTU that is not big enough for the data. Because the IP Don't Fragment option is set, this machine sends an ICMP Datagram Too Big message back to the originator and drops the packet. The rogue router drops the ICMP message and the originator never gets to discover that it must reduce the fragment size or drop the IP Don't Fragment option from its outgoing data.
In the other systems
| System | Port | Version |
|---|---|---|
| FreeBSD | net/tcpmssd | 1.1_2 |
| DragonFly | net/tcpmssd | 1.1_2 |
| HardenedBSD | net/tcpmssd | 1.1_2 |
| GhostBSD | net/tcpmssd | 1.1_2 |
Install
Binary package:
pkg install tcpmssd
From the ports tree:
cd /usr/ports/net/tcpmssd/ && make install clean
To depend on this port in another port's Makefile:
RUN_DEPENDS= tcpmssd>0:net/tcpmssd
Packages
The version each package repository carries. “-” means the repository builds no package of it, “n/a” that there is no such repository.
| Repository | aarch64 | amd64 | armv6 | armv7 | i386 |
|---|---|---|---|---|---|
| FreeBSD:14:latest | 1.1_2 | 1.1_2 | 1.1_1 | 1.1_2 | 1.1_2 |
| FreeBSD:14:quarterly | 1.1_2 | 1.1_2 | n/a | 1.1_2 | 1.1_2 |
| FreeBSD:15:latest | 1.1_2 | 1.1_2 | n/a | 1.1_2 | 1.1_2 |
| FreeBSD:15:quarterly | 1.1_2 | 1.1_2 | n/a | n/a | n/a |
| FreeBSD:16:latest | 1.1_2 | 1.1_2 | n/a | n/a | n/a |
| FreeBSD:16:quarterly | n/a | n/a | n/a | n/a | n/a |
Dependencies
The Makefile names none itself; they come from USES and USE_*.
The full lists below include those, and their dependencies in turn.
No port depends on this one.
Configuration
No options to configure.
- Service scripts
- none
Message after installing
Files
No file lists for this port.
Commit history 0
No commits in the history this site was built from.