ESR series service routers.ESR-Series. User manual
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Step Description Command Keys
6 Add IPv4/IPv6 address for a 
specific physical address to the 
address pool of configurable 
DHCP server (optional).
esr(config-dhcp-server)# address 
<ADDR> 
{mac-address <MAC> | client-
identifier <CI>}
<ADDR> – client IP address, defined 
as AAA.BBB.CCC.DDD where each 
part takes values of [0..255];
<MAC> – MAC address of the client, 
which will be given the IP address, is 
defined as XX: XX: XX: XX: XX: XX 
where each part takes the values of 
[00..FF].
<CI> – client identifier according to 
DHCPOption61. Can be specified as 
follows:
HH:HH:HH:HH:HH:HH:HH: – 
client identifier in 
hexadecimal format and 
client MAC address;
STRING – text string from 1 
to 64 characters.
esr(config-ipv6-dhcp-server)# 
address <ADDR> mac-address 
<MAC>
<IPV6-ADDR> – client IPv6 address, 
defined as X:X:X:X::X where each 
part takes values in hexadecimal 
format [0..FFFF];
<MAC> – MAC address of the client, 
which will be given the IP address, 
defined as XX: XX: XX: XX: XX: XX 
where each part takes the values of 
[00..FF].
7 Specify the list of default gateway 
IPv4 addresses which will be 
transmitted by DHCP server to 
clients through DHCP option 3.
esr(config-dhcp-server)# default-
router <ADDR>
<ADDR> – default gateway IP 
address, defined as 
AAA.BBB.CCC.DDD where each part 
takes values of [0..255]. Up to 8 IP 
addresses can be specified 
separated by commas.
8 Specify network domain DNS 
name. Domain name is 
transmitted to clients as part of 
DHCP option 15 (optional).
esr(config-dhcp-server)# domain-
name <NAME>
<NAME> – router domain name, set 
by the string from 1 to 255 
characters.
esr(config-ipv6-dhcp-server)# 
domain-name <NAME>
9 Specify DNS server IPv4/IPv6 
addresses list. The list is 
transmitted to clients as part of 
DHCP option 6 (optional).
esr(config-dhcp-server)# dns-
server <ADDR>
<ADDR> – DNS server IP address, 
defined as AAA.BBB.CCC.DDD where 
each part takes values of 
[0..255].Up to 8 IP addresses can be 
specified separated by commas.