12-16-2015
pfctl -ss or better still man pfctl
7 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Is there any way to check up the TCP/Ip port connectivity( healthiness ) without using ping or icmp calls ? (2 Replies)
Discussion started by: vikasdeshmukh
2 Replies
2. IP Networking
This feels really silly, but i just dont get it..
I just installed openbsd on one of my machines, usually
i dont have this problem, but now, when i try to use ifconfig
to give myself an ipadress, i get this errormsg:
OpenAMD# ifconfig ep0 192.168.51.16
ifconfig: SIOCGIFFLAGS: Device not... (5 Replies)
Discussion started by: CopyWrong
5 Replies
3. UNIX for Dummies Questions & Answers
hi
can i know if there is any GUI interface software to help in monitoring the network of the servers i have? something like a web pages or a stock pages when a processes is down, a red colour is flashes. best if it is free ;) (1 Reply)
Discussion started by: legato
1 Replies
4. HP-UX
I Colleagues,
Somebody can say me how to monitoring traffic in the network. also I am interested in monitoring memory. if somebody to know a guide with command advanced in unix welcome for me.
Thank you for adcanced. (0 Replies)
Discussion started by: systemoper
0 Replies
5. UNIX for Advanced & Expert Users
Hi all,
I got following configuration problem
I need to configure tiny network on openbsd
I got server1 with 3 interfaces vic0 em0 em1
The interface vic0 on server1 has follwoing IP 172.16.1.1
em0
firstly I would like to configure network under em0 (I have assigned to em0 following... (1 Reply)
Discussion started by: kvok
1 Replies
6. Shell Programming and Scripting
My Office Hours between 10 A.M to 5 P.M .I am managing 16 client PCs which is remotely placed. I want to know the network status of every client PCs.I need an automatic trigger mail ,when the network connection is lost in any one of the Client PCs during office hours.I am a self study learner.I... (9 Replies)
Discussion started by: kannansoft1985
9 Replies
7. Infrastructure Monitoring
Hi,
Though I have some Linux background I'm new to BSD. Currently I'm administering an OpenBSD 5.3 firewall which based on PF.
I want to view my top talkers to the internet. If it is a graphical one that's better but I like to know whether it is possible through a command like pfctl a help... (1 Reply)
Discussion started by: amithad
1 Replies
LEARN ABOUT NETBSD
etherip
ETHERIP(4) BSD Kernel Interfaces Manual ETHERIP(4)
NAME
etherip -- EtherIP tunneling device
SYNOPSIS
pseudo-device etherip
DESCRIPTION
The etherip interface is a tunneling pseudo device for Ethernet frames. It can tunnel Ethernet traffic over IPv4 and IPv6 using the EtherIP
protocol specified in RFC 3378.
The only difference between an etherip interface and a real Ethernet interface is that there is an IP tunnel instead of a wire. Therefore,
to use etherip the administrator must first create the interface and then configure protocol and addresses used for the outer header. This
can be done by using ifconfig(8) create and tunnel subcommands, or SIOCIFCREATE and SIOCSLIFPHYADDR ioctls.
Packet format
Ethernet frames are prepended with a EtherIP header as described by RFC 3378. The resulting EtherIP packets will be encapsulated in an outer
packet, which may be either an IPv4 or IPv6 packet, with IP protocol number 97.
Ethernet address
When a etherip device is created, it is assigned an Ethernet address of the form f2:0b:a5:xx:xx:xx. This address can later be changed
through a sysctl node.
The sysctl node is net.link.etherip.<iface>. Any string of six colon-separated hexadecimal numbers will be accepted. Reading that node will
provide a string representation of the current Ethernet address.
Security
The EtherIP header of incoming packets is not checked for validity. This is because there seems to be some confusion about how such a header
has to look like. For outgoing packets, the header is set up the same way as done in OpenBSD, FreeBSD, and Linux to be compatible with those
systems.
Converting from previous implementation
A tunnel configured for the previous (undocumented) implementation will work with just renaming the device from gif to etherip.
SEE ALSO
bridge(4), gif(4), inet(4), inet6(4), tap(4), ifconfig(8)
HISTORY
The etherip device first appeared in NetBSD 4.0, it is based on tap(4), gif(4), and the former gif-based EtherIP implementation ported from
OpenBSD.
BUGS
Probably many. There is lots of code duplication between etherip, tap(4), gif(4), and probably other tunnelling drivers which should be
cleaned up.
BSD
November 23, 2006 BSD