Hi, All! I have a router with two external ethernet links to two different ISPs. Could someone recommend me a good technique to organize failover with these two channels (similar to trunk(4) but on higher level)? I thought about writing the Perl script to periodically ping destination on master ISP and if it is failure, reconfigure routing tables and NAT to slave provider's addr. Cause of this is a very network topology dependent things (timeouts, way of check dst, etc..) i wonder if somebody has a good expirience with this situation.
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