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Virtual Private Networks (VPN)
i. Enable custom PPP configuration.
ii. Enable Override if the custom configuration should override the default configuration
and only use the custom options.
iii. For Configuration file, paste or type the configuration data in the format of a pppd
options file.
8. Click Apply to save the configuration and apply the change.
Command line
1. Select the device in Remote Manager and click Actions > Open Console, or log into the IX20
local command line as a user with full Admin access rights.
Depending on your device configuration, you may be presented with an Access selection
menu. Type admin to access the Admin CLI.
2. At the command line, type config to enter configuration mode:
> config
(config)>
3. (Optional) Set the UDP listening port that L2TP servers will listen on:
(config)> vpn l2tp port value
(config)>
where value is an integer between 1 and 65535. The default is 1701.
4. Set the access control for L2TP tunnels:
n
To limit access to specified IPv4 addresses and networks:
(config)> add vpn l2tp acl address end value
(config)>
Where value can be:
A single IP address or host name.
l
A network designation in CIDRnotation, for example, 192.168.1.0/24.
l
any: No limit to IPv4 addresses that can access the service-type.
l
Repeat this step to list additional IP addresses or networks.
n
To limit access to specified IPv6 addresses and networks:
(config)> add vpn l2tp acl address6 end value
(config)>
Where value can be:
A single IP address or host name.
l
A network designation in CIDRnotation, for example, 2001:db8::/48.
l
any: No limit to IPv6 addresses that can access the service-type.
l
Repeat this step to list additional IP addresses or networks.
IX20 User Guide
L2TP
619
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