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How to route all incoming packets from one virtual interface?

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# 1  
Old 12-12-2013
How to route all incoming packets from one virtual interface?
Hello, I'm trying to route all packets arriving at a particular interface by entering the same interface
the virtual interface eth1: 2 and now everything is routed by default gw configured on eth1.
Code:
eth1      Link encap:Ethernet  HWaddr 0a:0e:64:18:52:72
          inet addr:192.168.10.15
eth1:2    Link encap:Ethernet  HWaddr 0a:0e:64:18:52:72
          inet addr:192.168.10.23

default gw
Code:
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.10.0    *               255.255.255.0   U     0      0        0 eth1
default         192.168.10.254  0.0.0.0         UG    0      0        0 eth1

I want all incoming packets from 192.168.10.23 going out from the same interface.

Some help?
Last edited by Franklin52; 12-13-2013 at 05:12 AM.. Reason: Please use code tags
# 2  
Old 12-12-2013
I assume you're using Linux?

Quote:
Linux implements a weak host model: even if an address is configured on a given interface, this does not guarantee that packets generated on the host with that address as source will leave the host by that interface. Simply put, the destination IP address of the packet is used as the main key to select the best available route (gateway, interface) from the routing table.
You can make this happen using Linux Policy Routing. I've messed with this when I had two Internet connections and it can be a headache.

Here is a howto I found with Google that explains the steps I think you need: A Quick Introduction to Linux Policy Routing
This User Gave Thanks to neutronscott For This Post:
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