ESR series service routers.ESR-Series. User manual
Step Description Command Keys
13 Define a static ip address for the 
specified OpenVPN server user.
esr(config-openvpn-user)# ip 
address <ADDR>
<ADDR> – address set in the 
following format:
AAA.BBB.CCC.DDD – IP address of 
the subnet where AAA-DDD are set to 
[0..255].
14 Enable OpenVPN server profile. esr(config-openvpn-server)# 
enable
15 Enable data transmission blocking 
between clients (optional).
esr(config-openvpn-server)# 
client-isolation
16 Set the maximum amount of 
simultaneous user sessions 
(optional).
esr(config-openvpn-server)# 
client-max <VALUE>
<VALUE> – maximum amount of 
users, takes values of [1..65535].
17 The mechanism of transmitted data 
compression between clients and 
the OpenVPN server is enabled 
(optional).
esr(config-openvpn-server)# 
compression
18 Define the list of DNS servers that 
will be used by remote users 
(optional).
esr(config-openvpn-server)# 
dns-server <ADDR>
<ADDR> – DNS server IP address, 
defined as AAA.BBB.CCC.DDD where 
each part takes values of [0..255].
19 Specify TCP/UDP port that will be 
listened by OpenVPN server 
(optional).
esr(config-openvpn-server)# 
port <PORT>
<PORT> – TCP/UDP port, takes 
values of [1..65535].
Default value: 1194.
20 Enable the default route advertising 
for OpenVPN connections, which 
leads to the replacement of the 
default route on the client side 
(optional).
esr(config-openvpn-server)# 
redirect-gateway
21 Enable the advertising of specified 
subnets, the gateway is OpenVPN 
server IP address (optional).
esr(config-openvpn-server)# 
route <ADDR/LEN>
<ADDR/LEN> – subnet address, set 
in the following format:
AAA.BBB.CCC.DDD/EE – network IP 
address with prefix mask, where 
AAA-DDD take values of [0..255] and 
EE takes values of [1..32].
22 Set time interval after which the 
opposing party is considered to be 
unavailable (optional).
esr(config-openvpn-server)# 
timers holdtime <TIME>
<TIME> – time in seconds, takes 
values of [1..65535].
Default value: 120.