Thank you for your answer!
Do you think I should edit my MTU on all interfaces?
Because I have the same issue using ethernet to connect to my ISP instead of SFP (passing through a switch)!
The export doesn't say nothing about auto-negotiation because I used the default settings, they are the same you reported but with Flow Control off (my ISP told me to turn it off).
Here's interface data:
----Actual Gateway (x86 machine with RouterOS 6.19)----
LAN (Ethernet to bridged network)
MTU: 1500
L2 MTU: 9200 (not editable)
WAN (Ethernet to a switch that has both SFP and Ethernet port)
MTU: 1500
L2 MTU: 7152 (not editable)
Bridge
MTU: 1500
L2 MTU: 9200 (not editable)
----New CCR Gateway----
SFP1 to Fiber (instead of old WAN)
MTU: 1500
L2 MTU: 9600
SFP2 to bridged network (instead of old LAN)
MTU: 1500
L2 MTU: 9600
All other interfaces
MTU: 1500
L2 MTU: 1590
Bridge
MTU: 1500
L2 MTU: 1590 (not editable)
As I said, I have the same issue using SFP or using Ethernet, both for bridged network and fiber...
Hello,
Maybe the issue is here?:
set [ find default-name=sfp1 ] auto-negotiation=no comment="Fiber" \
l2mtu=9600 name=sfp1-wan
If ros is v.6.19, then set autonegotiation to yes
and why second route?
add distance=1 dst-address=MY_WAN_IP gateway=MY_GW_WAN_IP
I had to use auto-negotiation=no and set it to 1gbps-full because it's the only way to make it work.
My ISP told me to do this.
About the second route you're right, it's not needed, I don't remember why is there, maybe because all my attempts to solve the problem
I noticed also that on the Old Gateway in Firewall -> Mangle there are these two values, and there are not in the new one:
MANGLE
Flags: X - disabled, I - invalid, D - dynamic
0 D chain=forward action=change-mss new-mss=1370 passthrough=yes
tcp-flags=syn protocol=tcp in-interface=all-ppp tcp-mss=1371-65535
log=no log-prefix=""
1 D chain=forward action=change-mss new-mss=1420 passthrough=yes
tcp-flags=syn protocol=tcp out-interface=all-ppp tcp-mss=1421-65535
log=no log-prefix=""
But they are dynamic, where are they from?