ESR series service routers.ESR-Series. User manual
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Step Description Command Keys
4 Specify the IP address of the local 
gateway or disable firewall for the 
PPTP server
esr(config-l2tp-server)# 
local-address { object-group 
<OBJ-GROUP-NETWORK 
-NAME> | ip-address 
<ADDR> }
<OBJ-GROUP-NETWORK-NAME> – 
name of the IP addresses profile that 
includes local gateway IP address, 
set by the string of up to 31 
characters;
<ADDR> – range starting IP address, 
defined as AAA.BBB.CCC.DDD where 
each part takes values of [0..255].
5 Specify IP addresses list from which 
dynamic IP addresses are leased to 
remote users by L2TP.
esr(config-l2tp-server)# 
remote-address 
{ object-group <OBJ-GROUP-
NETWORK -NAME> | 
address-range <FROM-
ADDR>-<TO-ADDR> }
<OBJ-GROUP-NETWORK-NAME> – 
name of the IP addresses profile that 
includes remote users IP addresses 
list, set by the string of up to 31 
characters;
<FROM-ADDR> – range starting IP 
address, defined as 
AAA.BBB.CCC.DDD where each part 
takes values of [0..255];
<TO-ADDR> – range ending IP 
address, defined as 
AAA.BBB.CCC.DDD where each part 
takes values of [0..255].
6 Select L2TP clients authentication 
mode.
esr(config-l2tp-server)# 
authentication mode 
{ local | radius }
local – user authentication by 
local base.
radius – user authentication 
by RADIUS server base. The 
router must be configured to 
interact with a RADIUS-server, 
see section AAA RADIUS 
configuration algorithm
7 Allow necessary authentication 
methods for remote users
esr(config-l2tp-server)# 
authentication method 
<METHOD>
<METHOD> – authentication method, 
possible values: [chap, mschap, 
mschap-v2, eap, pap].
By default only chap is allowed.
8 Include the L2TP server in a security 
zone and configure interaction rules 
between zones (see section Firewall 
configuration).
esr(config-l2tp-server)# 
security-zone <NAME>
<NAME> – security zone name, set 
by the string of up to 31 characters.
9 Specify user name (when using local 
authentication base).
esr(config-l2tp-server) 
username < NAME >
<NAME> – user name, set by the 
string of up to 12 characters.