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Cedar: Add "DefaultGateway" and "DefaultSubnet" virtual hub options

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WireGuard does not provide any configuration messages, meaning that we cannot push the IP address we receive from the DHCP server to the client.

In order to overcome the limitation we don't perform any DHCP operations and instead just extract the source IP address from the first IPv4 packet we receive in the tunnel.

The gateway address and the subnet mask can be set using the new "SetStaticNetwork" command. The values can be retrieved using "OptionsGet".

In future we will add a "allowed source IP addresses" function, similar to what the original WireGuard implementation provides.

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SetStaticNetwork command - Set Virtual Hub static IPv4 network parameters
Help for command "SetStaticNetwork"

Purpose:
  Set Virtual Hub static IPv4 network parameters

Description:
  Set the static IPv4 network parameters for the Virtual Hub. They are used when DHCP is not available (e.g. WireGuard sessions).
  You can get the current settings by using the OptionsGet command.

Usage:
  SetStaticNetwork [/GATEWAY:gateway] [/SUBNET:subnet]

Parameters:
  /GATEWAY - Specify the IP address of the gateway that will be used for internet communication.
  /SUBNET  - Specify the subnet mask, required to determine the size of the local VPN network.
This commit is contained in:
Davide Beatrici
2020-09-01 03:04:14 +02:00
parent decfcecc97
commit afe576dcdc
14 changed files with 171 additions and 10 deletions
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13
src/bin/hamcore/strtable_cn.stb
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@ -5100,6 +5100,16 @@ CMD_Offline_Help 如果您正在管理的虚拟 HUB 在线，设置成脱机
CMD_Offline_Args Offline
# SetStaticNetwork 命令
CMD_SetStaticNetwork Set Virtual Hub static IPv4 network parameters
CMD_SetStaticNetwork_Help Set the static IPv4 network parameters for the Virtual Hub. They are used when DHCP is not available (e.g. WireGuard sessions). \nYou can get the current settings by using the OptionsGet command.
CMD_SetStaticNetwork_Args SetStaticNetwork [/GATEWAY:gateway] [/SUBNET:subnet]
CMD_SetStaticNetwork_GATEWAY Specify the IP address of the gateway that will be used for internet communication.
CMD_SetStaticNetwork_SUBNET Specify the subnet mask, required to determine the size of the local VPN network.
CMD_SetStaticNetwork_Prompt_GATEWAY Gateway:
CMD_SetStaticNetwork_Prompt_SUBNET Subnet mask:
# SetMaxSession 命令
CMD_SetMaxSession 设定虚拟 HUB 的最大同时在线用户数量
CMD_SetMaxSession_Help 设定现在正在管理的虚拟 HUB 的最大同时在线客户数量。当超过这个数量时，如果从 VPN Client 和 VPN Bridge 连接的时候，超过了最大并发会话数，更多的客户将无法连接。最大同时在线客户数的限制不包括本地的网桥，虚拟的 NAT，级联连接等生成连接不包括在内。\n设置同时在线最大数目，可以通过运行 OptionsGet 命令获得。\n此命令，在 VPN Bridge 中不会运行。\n此命令在集群虚拟 HUB 中不能运行。
@ -5136,7 +5146,8 @@ CMD_OptionsGet_ENUM 对于匿名用户的虚拟 HUB 的显示
CMD_OptionsGet_MAXSESSIONS 最大同时在线客户数
CMD_OptionsGet_STATUS 状态
CMD_OptionsGet_TYPE 虚拟 HUB 的类型
CMD_OptionsGet_GATEWAY Default gateway
CMD_OptionsGet_SUBNET Default subnet
# RadiusServerSet 命令