I have 2 loacations and each location has 2 internet links. Now I will be adding two direct links between those locations. As alternative for using RED betwen locations I am considering to use GRE+IPSEC and hence are my questions. Since I will have two links I assumend I can establish two separate GRE tunnels over those links. First question - when I am creating tunnel which mask is used for internal GRE addressing /24 or soemthing smaller. If /24 does it mean that I shouldn't use different addresses from that segment on other GRE tunnel?
After two GRE tunnels are established can I do policy routing based on source (not destination) between those tunnels? I know I can route traffic for different desitnation through different tunnel using system gre route command but this command doesn;t allow me to take into account source address.
Pawel
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