For PPPoE subscribers, the PPP MRU or PPP MTU size can be greater than 1492 bytes if the PPP-Max-Payload tag is received in the PPPoE Active Discovery Request (PADR) packets. The configuration of …

With BT Infinity (and other PPPoE WAN connections) the maximum MTU is 1492, so the maximum ping size is 1464. I'd guess that PMTUD is being used on BT's routers as my ping only allows me to set a packet size of 1460 bytes before it gets fragmented. That means the MTU is 1488, which is an odd figure to set it to statically. MTU issues in CCIE R&S TS Section - Cisco Ethernet has a maximum payload size of 1500 octets. The PPPoE header is 6 octets and the PPP protocol ID is 2 octets, so the PPP maximum transmission unit (MTU) must not be greater than 1492. This is achieved with the configuration of IP MTU 1492 for PPPoE virtual-template interfaces. CCNA 4 Chapter 3 Exam Answers 2019 (v5.0.3 + v6.0) - Full 100% Jun 02, 2015 IP fragmentation, MTU issues using PPPoE Vodafone sure In this case, the MTU for a router that is forwarding the IP/PPPoE/PPP PDU between two interfaces would require a minimum MTU of 1500 octets to avoid fragmentation. Some people seem to treat 1492 as the maximum overall MTU value for the entire Ethernet frame and then deduct the Ethernet MAC and PPP/PPPoE headers from that.

First, let’s check MTU settings in Windows. 1. Open a Command Prompt CMD (Right Click CMD -> Run Ad Administrator) 2. Type the following: netsh interface ipv4 show subinterfaces. 3. Our MTU size is 1500 which is the default MTU size on most systems.

For PPPoE subscribers, the PPP MRU or PPP MTU size can be greater than 1492 bytes if the PPP-Max-Payload tag is received in the PPPoE Active Discovery Request (PADR) packets. The configuration of …

Jun 02, 2015

Nov 28, 2016