Difference between revisions of "Source based routing"
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| − | Sometimes you have more than one router in your network, and want different [[ | + | Sometimes you have more than one router in your network, and want different [[container]]s to use different routers. For that, you need to set up source-based routing on the host system. For example: |
<pre> | <pre> | ||
Revision as of 11:36, 11 March 2008
Sometimes you have more than one router in your network, and want different containers to use different routers. For that, you need to set up source-based routing on the host system. For example:
# /sbin/ip rule add from $IP table $TBL # /sbin/ip route add default dev eth0 via $GW table $TBL
where
$IPis an IP address which should use non-default gateway. You can also use netmask here, e.g.10.9.8.0/24will mean that all containers with addresses like 10.9.8.x will be routed through the given gateway.$GWis a gateway for this IP address.$TBLis any free table number, I use numbers from 6 upwards. Note that tables 250-255 are usually reserved (see/etc/iproute2/rt_tables).
Note that every new non-standard gateway will require another table number.
For more details on routing rules, see man ip.
