Hello,
Are there any plans to support RFC4638 to allow a PPPoE MTU of 1500?
Or is it already implemented and I'm misconfiguring? The highest MTU I've been able to get using 5.5 is 1492.
Thanks.
/interface pppoe-client add interface=ether1 max-mtu=1500 max-mru=1500
/ppp profile
add change-tcp-mss=no name=pppoe use-compression=no use-encryption=no use-ipv6=no use-mpls=no \
use-vj-compression=no
/interface pppoe-client
add disabled=no interface=ether1 keepalive-timeout=10 max-mru=1500 max-mtu=1500 name=pppoe-out1 password=\
123456 profile=pppoe user=pppoe-test
/ppp profile
add change-tcp-mss=no local-address=10.0.0.1 name=pppoe remote-address=10.0.0.2 use-compression=no \
use-encryption=no use-ipv6=no use-mpls=no use-vj-compression=no
/interface pppoe-server server
add default-profile=pppoe disabled=no interface=ether1 max-mru=1500 max-mtu=1500
/ppp secret
add name=pppoe-test password=123456 profile=pppoe
[admin@MikroTik] > ping 10.0.0.1 do-not-fragment size=1500
SEQ HOST SIZE TTL TIME STATUS
0 10.0.0.1 1500 64 2ms
1 10.0.0.1 1500 64 3ms
2 10.0.0.1 1500 64 2ms
sent=3 received=3 packet-loss=0% min-rtt=2ms avg-rtt=2ms max-rtt=3ms
[admin@MikroTik] > ping 10.0.0.1 do-not-fragment size=1501
SEQ HOST SIZE TTL TIME STATUS
0 packet too large and cannot be fragmented
0 10.0.0.2 576 64 1ms fragmentation needed and DF set
1 packet too large and cannot be fragmented
1 10.0.0.2 576 64 9ms fragmentation needed and DF set
sent=2 received=0 packet-loss=100%