kk Blog —— 通用基础


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strongswan ipsec 配置

安装

https://koji.fedoraproject.org/koji/packageinfo?buildStart=0&packageID=13302&buildOrder=-completion_time&tagOrder=name&tagStart=0#buildlist

ubuntu

sudo apt-get install strongswan-swanctl

vim /etc/swanctl/swanctl.conf

centos

yum install epel-release -y

yum install strongswan

vim /etc/strongswan/swanctl/swanctl.conf

版本

1、通用的配置文件为strongswan.conf,及strongswan.d目录下文件;

2、Used by swanctl and the preferred vici plugin: //推荐使用

需要配置swanctl目录下的文件。主要是swanctl目录下的swanctl.conf文件,如果你保持安装状态的swanctl.conf文件,则需要在swanctl/conf.d目录下增加新的配置文件,默认的swanctl/swanctl.conf文件会包含你新增的配置文件。

3、Used by starter and the deprecated stroke plugin: //过期,不推荐

3.1)配置ipsec.conf。

3.2)配置ipsec.secrets。

3.3)配置ipsec.d下的配置文件。

特别说明:当使用swanctl和starter工具时,需要的配置文件是完全不同的。 1的配置是必须,而2和3的配置你可以选择其中之一。

本文后述的配置均基于swanctl工具。

基本命令

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echo 1 > /proc/sys/net/ipv4/ip_forward

service strongswan start

swanctl --load-all
swanctl --list-conns
swanctl --list-sas

swanctl --initiate --child test_child
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在执行 sudo swanctl --load-all 时,遇到
connecting to 'unix:///var/run/charon.vici' failed: Connection refused
Error: connecting to 'default' URI failed: Connection refused

择需要先执行
service strongswan start

服务端转发上网

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iptables -t nat -A POSTROUTING -s 100.64.0.0/24 -o eth0 -j MASQUERADE

官方配置样例

https://www.strongswan.org/testing/testresults/

网络拓扑

aliyun 配置

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include conf.d/*.conf

connections {
	# 防火墙主动连接aliyun可行
	# TODO aliyun主动连接防火墙失败???
	test {
		version = 2
		proposals = default
		local_addrs = 192.168.0.47
		remote_addrs = 2.2.2.2

		local {
			auth = psk
			id = 192.168.0.48
		}
		remote {
			auth = psk
			id = 2.2.2.2
		}
		children {
			test_child {
				local_ts = 172.17.0.0/24
				remote_ts = 192.168.120.0/24
				esp_proposals = default
			}
		}
	}

	# aliyun主动连接服务器,服务器需要改端口,不然和防火墙冲突,防火墙对端口做DNAT
	test178 {
		version = 2
		proposals = default
		local_addrs = 192.168.0.47
		local_port = 4500
		remote_addrs = 2.2.2.2
		remote_port = 4501

		local {
			auth = psk
			id = 119.23.222.240
		}
		remote {
			auth = psk
			id = 2.2.2.2
		}
		children {
			test178_child {
				local_ts = 172.17.0.0/24
				remote_ts = 192.168.100.0/24
				esp_proposals = default
			}
		}
	}

	# 家连接aliyun
	testh {
		version = 2
		proposals = default
		local_addrs = 192.168.0.47

		local {
			auth = psk
			id = 119.23.222.240
		}
		remote {
			auth = psk
			id = 192.168.0.105
		}
		children {
			testh_child {
				local_ts = 172.17.0.0/24
				remote_ts = 10.0.0.0/24
				esp_proposals = default
			}
		}
	}

	# 手机用 IPSEC IKEv2 PSK 连接aliyun
	tests7 {
		version = 2
		proposals = default
		local_addrs = 192.168.0.47
		pools = pool1

		local {
			auth = psk
			id = 119.23.222.240
		}
		remote {
			auth = psk
			id = 100.64.0.111
		}
		children {
			tests7_child {
				local_ts = 172.17.0.0/24
				remote_ts = 100.64.0.0/24
				esp_proposals = default
			}
		}
	}

	# 失败。 手机用 IPSEC Xauth PSK 连接aliyun,手机的DH-group是modp1024, strongswan 从5.6.1开始取消了modp1024。。。
	# https://wiki.strongswan.org/versions/67
	tests77 {
		version = 1
		aggressive = yes
		proposals = default
		local_addrs = 192.168.0.47
		pools = pool1

		local {
			auth = psk
			id = 119.23.222.240
		}
		remote {
			auth = psk
			id = 100.64.0.111
		}
		remote-xauth {
			auth = xauth
		}
		children {
			tests77_child {
				local_ts = 172.17.0.0/24
				remote_ts = 100.64.0.0/24
				esp_proposals = default
			}
		}
	}

	# cp www.abcxyzkk.xyz_apache/root_bundle.crt /etc/strongswan/swanctl/x509ca/
	# cp www.abcxyzkk.xyz_apache/www.abcxyzkk.xyz.crt /etc/strongswan/swanctl/x509/
	# cp www.abcxyzkk.xyz_apache/www.abcxyzkk.xyz.key /etc/strongswan/swanctl/private/
	# EAP android 客户端 https://download.strongswan.org/Android/
	# EAP android 客户端 https://raw.githubusercontent.com/abcdxyzk/abcdxyzk.github.io_files/master/tools/vpn/strongSwan-2.3.3.apk
	# EAP 服务端转发上网 iptables -t nat -A POSTROUTING -s 100.64.0.0/24 -o eth0 -j MASQUERADE
	# echo 1 > /proc/sys/net/ipv4/ip_forward
	testEAP {
		version = 2
		proposals = default
		local_addrs = 192.168.0.47
		pools = pool1

		local {
			certs = www.abcxyzkk.xyz.crt
			id = www.abcxyzkk.xyz
		}
		remote {
			auth = eap-mschapv2
			id = %any
		}
		children {
			testEAP_child {
				#local_ts = 172.17.0.0/24
				local_ts = 0.0.0.0/0
				remote_ts = 100.64.0.0/24
				esp_proposals = default
			}
		}
	}

	# window 用 SHREW IPSec VPN 客户端,https://www.shrew.net/download/vpn/vpn-client-2.2.2-release.exe
	# 只能用 ikev1,  https://raw.githubusercontent.com/abcdxyzk/abcdxyzk.github.io_files/master/tools/vpn/vpn-client-2.2.2-release.exe
	# 公司和阿里云可以连接,但是用手机热点不能连
	# 使用野蛮模式aggressive = yes 需要配置 vim /etc/strongswan/strongswan.d/charon.conf
	# i_dont_care_about_security_and_use_aggressive_mode_psk = yes
	test_window {
		version = 1
		# aggressive = yes
		proposals = default
		local_addrs = 192.168.0.47
		pools = pool1

		local {
			auth = psk
			id = 192.168.0.48
		}
		remote {
			auth = psk
			id = 220.160.201.164
		}
		children {
			test_child {
				# local_ts = 192.168.100.0/24
				local_ts = 0.0.0.0/0
				# remote_ts = 100.64.0.0/24
				esp_proposals = default
			}
		}
	}

}

secrets {
	ike-testh {
		id-vir = 192.168.0.105
		secret = abc123
	}
	ike-tests7 {
		id-vir = 100.64.0.111
		secret = abc123
	}
	ike-test {
		id-vir = 2.2.2.2
		secret = abc123
	}

	xauth-kk1 {
		id = kk1
		secret = 123
	}
	xauth-kk2 {
		id = kk2
		secret = 123
	}

	private-www {
		file = www.abcxyzkk.xyz.key
	}
	eap-user {
		id = kk3
		secret = 123
	}
}

pools {
	pool1 {
		addrs = 100.64.0.0/24
	}
}

TODO 连接防火墙不成功

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include conf.d/*.conf

connections {

	# 家连接防火墙
	test {
		version = 2
		proposals = default
		local_addrs = 192.168.0.105
		remote_addrs = 119.23.222.240

		local {
			auth = psk
			id = 192.168.0.105
		}
		remote {
			auth = psk
			id = 119.23.222.240
		}
		children {
			test_child {
				local_ts = 10.0.0.0/24
				remote_ts = 172.17.0.0/24
				esp_proposals = default
			}
		}
	}

	# 家连接服务器
	testh {
		version = 2
		proposals = default
		local_addrs = 192.168.0.105
		local_port = 4500
		remote_addrs = 2.2.2.2
		remote_port = 4501

		local {
			auth = psk
			id = 192.168.0.105
		}
		remote {
			auth = psk
			id = 2.2.2.2
		}
		children {
			testh_child {
				local_ts = 10.0.0.0/24
				remote_ts = 192.168.100.0/24
				esp_proposals = default
			}
		}
	}
}

secrets {
	ike-test {
		id-vir = 119.23.222.240
		secret = abc123
	}
	ike-test2 {
		id-vir = 2.2.2.2
		secret = abc123
	}
}

用win7自带客户端连接aliyun EAP

https://wiki.strongswan.org/projects/strongswan/wiki/WindowsClients/65

win7 默认DH-group 是 modp1024,strongswan已经不在支持

修改 win7 配置 HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Rasman\Parameters\

增加 NegotiateDH2048_AES256 DWORD 1

window 用 SHREW IPSec VPN 客户端

http://www.easynetworks.com.cn/forum/faq/detail/id/24

window 用 SHREW IPSec VPN 客户端,https://www.shrew.net/download/vpn/vpn-client-2.2.2-release.exe

只能用 ikev1, https://raw.githubusercontent.com/abcdxyzk/abcdxyzk.github.io_files/master/tools/vpn/vpn-client-2.2.2-release.exe

公司和阿里云可以连接,但是用手机热点不能连

使用野蛮模式aggressive = yes 需要配置 vim /etc/strongswan/strongswan.d/charon.conf i_dont_care_about_security_and_use_aggressive_mode_psk = yes

服务器

TODO 应为改了端口,不好用手机连服务器

/etc/strongswan/strongswan.d/charon.conf

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# port = 500
port = 501



# port_nat_t = 4500
port_nat_t = 4501

/etc/strongswan/swanctl/swanctl.conf

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include conf.d/*.conf

connections {
	# aliyun 连服务器
	test {
		version = 2
		proposals = default
		local_addrs = 192.168.100.178
		# local_port = 4501
		# remote_addrs = 119.23.222.240
		remote_port = 4500

		local {
			auth = psk
			id = 2.2.2.2
		}
		remote {
			auth = psk
			id = 119.23.222.240
		}
		children {
			test_child {
				local_ts = 192.168.100.0/24
				remote_ts = 172.17.0.0/24
				esp_proposals = default
			}
		}
	}

	# 家连接服务器
	testhome {
		version = 2
		proposals = default
		local_addrs = 192.168.100.178
		# local_port = 4501
		# remote_addrs = 119.23.222.240
		remote_port = 4500

		local {
			auth = psk
			id = 2.2.2.2
		}
		remote {
			auth = psk
			id = 192.168.0.105
		}

		children {
			test_child {
				local_ts = 192.168.100.0/24
				remote_ts = 10.0.0.0/24
				esp_proposals = default
			}
		}
	}

	# cp ~/www.npcable.cn_apache/root_bundle.crt /etc/strongswan/swanctl/x509ca/
	# cp ~/www.npcable.cn_apache/www.npcable.cn.crt /etc/strongswan/swanctl/x509/
	# cp ~/www.npcable.cn_apache/www.npcable.cn.key /etc/strongswan/swanctl/private/
	# EAP 服务端转发上网 iptables -t nat -A POSTROUTING -s 100.64.0.0/24 -o eth0 -j MASQUERADE
	# echo 1 > /proc/sys/net/ipv4/ip_forward
	testEAP {
		version = 2
		proposals = default
		local_addrs = 192.168.100.178
		pools = pool1

		local {
			certs = www.npcable.cn.crt
			id = www.npcable.cn
		}
		remote {
			auth = eap-mschapv2
			id = %any
		}
		children {
			testEAP_child {
				local_ts = 192.168.100.0/24,192.168.200.0/24,192.168.120.0/24
				#local_ts = 0.0.0.0/0
				remote_ts = 100.64.0.0/24
				esp_proposals = default
			}
		}
	}
}

secrets {
	ike-test {
		id-vir = 119.23.222.240
		secret = abc123
	}
	ike-testhome {
		id-vir = 192.168.0.105
		secret = abc123
	}
	private-www {
		file = www.npcable.cn.key
	}
	eap-user {
		id = kk3
		secret = abc123
	}
}

pools {
	pool1 {
		addrs = 100.64.0.0/24
	}
}

手机配置

to aliyun ikev2

to aliyun xauth

失败。 手机用 IPSEC Xauth PSK 连接aliyun,手机的DH-group是modp1024, strongswan 从5.6.1开始取消了modp1024。。。

to firewall 不成功

EAP

防火墙配置

DH-group 要改成 group14 及以上,太低strongswan不认

参考

https://help.aliyun.com/document_detail/110816.html

https://blog.csdn.net/weixin_43190642/article/details/122080246

https://www.cnblogs.com/shaoyangz/p/10345698.html

https://blog.csdn.net/qq_42760638/article/details/122042536

https://www.likecs.com/show-204025603.html