Jun 29 2021, 12:59 AM
https://www.sonicwall.com/support/knowledge...70505851231244/
It is generally recommended that the MTU for a WAN interface connected to a PPPoE DSL network be 1492. In fact, with auto MTU discovery, 1492 is discovered to be the maximum allowed MTU. However, having an MTU of 1452 is most optimal.
https://www.techrepublic.com/article/how-to...er-performance/
QUOTE(latiffesa @ Apr 10 2020, 10:52 PM)
HI the reason for this MTU issue is very simple.
MTU means the largest size of data transmission via a network path
The MTU size id dynamic means that it can be several variable below a ciling size
This variable is auto detected by the ICMP protocol
The entire ICMP protocol family is blocked by TM Unifi.
IF TM unifi can identify which or their devices blocked the ICMP protocol than this issue wont arise anylonger
The ICMP protocol is responsible to auto detect the MTU than make use of the dynimaic setting to make the VPN work right away
About the VPN ...VPN protocl tends to load more header than the common way of cimmunication thus this is waht causing what you are experinceing right now
so:
1. Either TM allow ICMP protocol or
2. All TM Customers entire malaysia need to manualy adjust this MTU
This post has been edited by rodyeo: Sep 11 2021, 12:12 AMMTU means the largest size of data transmission via a network path
The MTU size id dynamic means that it can be several variable below a ciling size
This variable is auto detected by the ICMP protocol
The entire ICMP protocol family is blocked by TM Unifi.
IF TM unifi can identify which or their devices blocked the ICMP protocol than this issue wont arise anylonger
The ICMP protocol is responsible to auto detect the MTU than make use of the dynimaic setting to make the VPN work right away
About the VPN ...VPN protocl tends to load more header than the common way of cimmunication thus this is waht causing what you are experinceing right now
so:
1. Either TM allow ICMP protocol or
2. All TM Customers entire malaysia need to manualy adjust this MTU
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