RACOM M!DGE3, Руководство пользователя

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• Settings > Routing > Static routes are valid even if the Dynamic routing is enabled. Dynamic routing
protocols “export” resulting routing rules into Linux and they are added to the existing (static) routing
rules.
• Particular routing decision takes IP mask as a primary decision rule (narrower mask has a higher
priority) and metric as a secondary decision rule. Rules received from dynamic protocols have
higher metric compared to Static routes (they always have the highest possible metric).
• Internal metrics of dynamic protocols are processed only inside them. Only the final set of routing
rules is exported to the Linux router.
Example 1:
• Settings > Routing > Static routes rule: 0.0.0.0/0 → 10.10.1.11
• Dynamic rule: 192.168.1.0/24 → 192.168.11.1 metric 32
• Packet with DST 192.168.1.42 will be routed to 192.168.11.1 because the dynamic rule has a nar-
rower mask.
Example 2 – similar situation with additional static rule:
• Settings > Routing > Static routes rule: 0.0.0.0/0 → 10.10.1.11
• Settings > Routing > Static routes rule: 192.168.1.0/24 → 192.168.22.1
• Dynamic rule: 192.168.1.0/24 → 192.168.11.1 metric 1000
• Packet with DST 192.168.1.42 will be routed to 192.168.22.1 because the static rule has the same
mask, but better metric
7.2.2.2. Common - Common settings
Router ID
IP address, default = 0.0.0.0
M!DGE3 unit acts in the BABEL network as a dynamic router. Every router is identified by an ID
having the format of IP address. This IP address does not have to be ‘real’.
Router ID is shared across all dynamic protocols.
Randomize ID
List box {On; Off}, default = "Off"
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