ELTEX MES3108 - Protocol Configuration; DNS Protocol Configuration

88 MES3000 Ethernet switch series
Table 5.70—Global configuration mode commands
Command
Value/Default value
Action
ipv6 dhcp guard
-/disabled
Enable DHCPv6 guard management for the switch.
no ipv6 dhcp guard
Disable DHCPv6 guard.
ipv6 dhcp guard vlan vlan
(1..4094)
Enable DHCPv6 guard management within the specified VLAN.
- vlan – VLAN number.
Ethernet Interface Configuration Mode Commands
Command line request in the interface configuration mode appears as follows:
console (config-if)#
Table 5.71—Ethernet interface configuration mode commands
Command
Value/Default value
Action
ipv6 dhcp guard devicerole
{client | server}
-/client
Port operation mode selection:
- client – 'advertise' and 'relpy' messages are discarded
- server – 'advertise' and 'relpy' messages are filtered by the rules.
ipv6 dhcp guard match server
accsess-list acl
acl: (1..32) characters
Enable ACL for filtering DHCPv6 messages.
- acl – ACL name.
ipv6 dhcp guard match reply
prefix-list prefix_list
prefix_list: (1..32)
characters
Enable prefix-list for filtering DHCPv6 messages.
- prefix-list – prefix-list name.
ipv6 dhcp guard trusted-port
By default, all ports are
untrusted
Add port to the trusted list. Trusted ports allow all types of
messages.
no ipv6 dhcp guard trusted-
port
Delete port from trusted list.
5.15 Protocol configuration
5.15.1 DNS protocol configuration
The main task of DNS protocol is the identification of the network node (host) IP address by the
request that contains its domain name. The database of network node domain names and corresponding
IP addresses is stored on DNS servers.
Global configuration mode commands
Command line request in global configuration mode appears as follows:
console(config)#
Table 5.72 —Global configuration mode commands
Command
Value/Default value
Action
ip domain lookup
-/enabled
Enable DNS protocol utilization.
no ip domain lookup
Disable DNS protocol utilization.
ip name-server
{server1_ipv4_address |
server1_ipv6_address}
[server_address2 …
server_address8]
-
Define IPv4/IPv6 addresses for available DNS servers. You can
define up to 8 server IP addresses.
no ip name-server
[server_address1 …
server_address8]
Remove DNS server IP address from the list of available servers.