
Usually this will be a server owned by the ISP. Get this IP address from your ISP. This is the second choice for a DNS server. Get this IP address from your ISP. The Maximum Transmission Unit size may be changed if you want to optimize efficiency for uploading data through the WAN interface. The default setting (1400 bytes) should be suitable for most users. Some user may want to adjust the setting to optimize performance for wireless traffic or when low latency is desired (such as with Internet