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Setting all-zeroes gateway IP for NI is not allowed #41

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merged 2 commits into from
Dec 19, 2023
Merged

Setting all-zeroes gateway IP for NI is not allowed #41

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Setting all-zeroes gateway IP for NI is not allowed
milan-zededa Dec 19, 2023
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Generate proto files
milan-zededa Dec 19, 2023
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26 changes: 11 additions & 15 deletions go/config/netinst.pb.go
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26 changes: 12 additions & 14 deletions proto/config/netinst.proto
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Original file line number Diff line number Diff line change
Expand Up @@ -113,12 +113,11 @@ message NetworkInstanceConfig {
AddressType ipType = 39;

// network ip specification
// If ip.gateway is set to all-zeroes IP, default route will not be propagated
// to applications for interfaces connected to this network instance.
// Default route propagation is also automatically suppressed when the network
// instance is air-gapped or when the uplink is app-shared without default route
// configured. This behaviour can be further customized using static_routes
// (see below).
// Note that ip.gateway must be a valid IP address and can not be all-zeroes.
// To suppress automatic propagation of the default route into apps, configure network
// instance as air-gapped (without uplink) or mark the uplink as app-shared
// (not for management) and ensure that it will not get a default route
// (e.g. set ip.gateway of the attached NetworkConfig to all-zeroes IP).
ipspec ip = 40;

// static DNS entry, if we are running DNS/DHCP service
Expand All @@ -143,14 +142,13 @@ message NetworkInstanceConfig {
// routes can be propagated at the same time, there are no restrictions for using both.
//
// Note that the default route (with the bridge IP as the gateway) is automatically
// propagated to connected applications with these exceptions:
// a) default route propagation is explicitly disabled by setting
// NetworkInstanceConfig.ip.gateway to an all-zeroes IP
// b) network instance is air-gapped (without uplink)
// c) the uplink is app-shared (not management) and does not have a default route
// of its own
// In the b) and c) cases, it is possible to enforce default route propagation
// by configuring a static default route for the network instance.
// propagated to connected applications, unless network instance is air-gapped
// (without uplink) or the uplink is app-shared (not management) and does not have
// a default route of its own. In both cases, it is possible to enforce default
// route propagation by configuring a static default route for the network instance.
//
// For more info on static and connected routes please refer to:
// https://wiki.lfedge.org/display/EVE/Connected+and+Static+IP+Route
//
// This option is only valid for local network instances. For other types
// of network instances, it will be ignored.
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