As the DHCP settings of the vswitch, the router switches the wireless route of the vswitch to the AP mode to connect to the wired router. Disable the DHCP service built in the wireless router for the Wireless AP to use, but sometimes the computer cannot get the IP address correctly. Why?
1. Understanding SPI firewall 1. SPI, namely, full-state packet inspection firewall, refers to the situation through the source address, Destination Address, source port and destination port of each connection information; checks the protocol type, TCP connection status, and timeout time to determine whether the firewall filters data packets. 2. In the default situation, the router and SPI will block other DHCP packets and other such items, and the DHCP packets that you route can be sent, in this case, a wireless route will automatically assign an IP address to the computer, and the computer will be allocated an incorrect IP address, resulting in a failure to access the Internet. Www.2cto.com 2. solution 1. The network topology is as follows:
2. If Multiple DHCP servers exist in the network, a server may not be able to know which IP addresses are rented by other DHCP servers, the two DHCP servers lease them to others at the same time, resulting in a network address conflict. In this case, we need to set up DHCP.
3. Preparation (1) wired router parameters: Management IP Address: 192.168.1.1 subnet mask: 255.255.255.0DHCP address pool allocation segment: 192.168.1.100-199 (2) wireless router parameters: Management IP Address: 192.168.1.254 subnet mask: 255.255.255.0DHCP address pool allocation segment is 192.168.1.100-1994. It is clear that a DHCP address pool conflict occurs. To avoid IP address conflicts in DHCP, the address pool must be changed, after the modification is as follows: www.2cto.com (1) wired router parameters: Management IP Address: 192.168.1.1 subnet mask: 255.255.255.0DHCP address pool allocation segment: 192.168.1.100-199 (2) wireless router parameters: Management IP Address: 192.168.1.254 subnet mask: 255.255.255.0DHCP address pool allocation segment: 192.168.1.200-253DHCP Default Gateway: 192.168.1.1