adress traffic to tap0


 
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Old 01-25-2012
adress traffic to tap0

Hello, I have a problem of routing traffic on two virtual interfaces I have created on my machine (CentOs6)

By using tunctl I created two virtual interfaces tap1 and tap2

let s imagine I gave them two different address

tap1: 10.1.1.1 net 255.255.255.0

tap2: 10.1.2.1 net 255.255.255.0

I m receiving traffic on my real interface eth0: 192.168.1.23 net 255.255.255.0

I tried by using brctl and iptables to send some traffic to tap1 and others to tap2.. unfortunately i m not able to get how to do it.

An example of splitting may be.. let s send all the icmp packets to tap2 and the others on tap1. Is it possible somehow? Can you help me with some instructions?

Regards
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SHMIF(4)						   BSD Kernel Interfaces Manual 						  SHMIF(4)

NAME
shmif -- rump shared memory network interface SYNOPSIS
#include <rump/rump.h> int rump_pub_shmif_create(const char *path, int *ifnum); DESCRIPTION
The shmif interface uses a memory mapped regular file as a virtual Ethernet bus. All interfaces connected to the same bus see each others' traffic. Using a memory mapped regular file as a bus has two implications: 1. The bus identifier is not in flat global namespace. 2. Configuring and using the interface is possible without superuser privileges on the host (normal host file access permissions for the bus hold). It is not possible to directly access the host networking facilities from a rump virtual kernel using purely shmif. However, traffic can be routed to another rump kernel instance which provides both shmif and virt(4) networking. An shmif interface can be created in two ways: o Programmatically by calling rump_pub_shmif_create(). The bus pathname is passed in path. The number of the newly created interface is available after a successful call by dereferencing ifnum. o Dynamically at runtime with ifconfig(8) or equivalent using the create command. In this case the bus path must be configured with ifconfig(8) linkstr before the interface address can be configured. Destroying an shmif interface is possible only via ifconfig(8) destroy. SEE ALSO
rump(3), virt(4), ifconfig(8) BSD
November 17, 2010 BSD