dhcp server -------- usg2130 --------- pc
usg2130 works in transparent mode, the attached users can not automatically obtain the ip address that dhcp server issued
1. Directly linked the pc to the dhcp server, pc can automatically obtain the ip address. Prove dhcp server has no problem
2. Carefully check usg2130 data configuration, there is no problem too.
3. In global mode configure the following command to solve the problem:
firewall unknown-mac multicast flood multicast
firewall unknown-mac broadcast flood broadcast
1, dhcp server problem
2, usg2130 configuration problem
3, firewall works in transparent mode, not transparent transport broadcast and multicast packets
Firewall in transparent mode default to discard the unknown mac address.
Suggests that when the firewall works in transparent mode configure:
firewall unknown-mac broadcast flood;
firewall unknown-mac multicast flood
Avoid dhcp ospf and other multicast or broadcast services unavailable.