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Router - Linux upload bonding using policy routing: Difference between revisions
Router - Linux upload bonding using policy routing (view source)
Revision as of 10:12, 3 May 2013
, 3 May 2013no edit summary
(Created page with "I'm using PPP on the Linux box - in my case via a Solos ADSL card, but this will also work using PPPoE. First, for convenience, name your extra routing tables by editing <tt>...") |
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<pre>
#!/bin/bash
# ip-up.d/set-routes
ip route replace default dev ${PPP_IFACE} table ${PPP_IFACE}
</pre>
<pre>
#!/bin/bash
# ipv6-up.d/set-routes
ip -6 route replace default dev ${PPP_IFACE} table ${PPP_IFACE}
</pre>
Add a script in <tt>/etc/ppp/ip-down.d</tt> and in <tt>/etc/ppp/ipv6-down.d</tt> to remove the per-interface routes when the PPP link goes down:
<pre>
#!/bin/bash
# ip-down.d/remove-routes
ip route flush table ${PPP_IFACE}
</pre>
<pre>
#!/bin/bash
# ipv6-down.d/remove-routes
ip -6 route flush table ${PPP_IFACE}
</pre>
Run the following script on boot:
</pre>
This uses iproute2's ip command to set up policy routing rules; the first set give you a firewall mark per line. (rules at prio 40000 and 40001). The last block (rules at 50000 and 50001)
# It ensures that packets that are marked for routing via a dead line are passed onto the other line
# It provides a fallback if you forget to add firewall marks in PREROUTING for some packets.
Finally, apply firewall marks in PREROUTING to choose your load balancing policy. For example:
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