for linux i used to create mangle lines with Clamp TCp MSS option to avoid pppoe pmtu problems. Do i need setting something like that forjuniper mx?
Example of linux rules:
-A FORWARD -o ppp+ -p tcp -m tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1453:65535 -j TCPMSS --set-mss 1452-A FORWARD -i ppp+ -p tcp -m tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1373:65535 -j TCPMSS --set-mss 1372
Yes, you will need same on MX, but 2 options here
1) MPC line card support for inline changing tcp mss for trasit packets see doc here
2) to change tcp mss for both directions you will need MS-MPC card, same doc
I configurated here: set dynamic-profiles PPPoE-Profile interfaces pp0 unit "$junos-interface-unit" family inet tcp-mss 1452 set dynamic-profiles PPPoE-Profile interfaces pp0 unit "$junos-interface-unit" family inet6 tcp-mss 1452 Is that correct for pp0.0 interfaces? I think pp0.0 itnerfaces is not gr- (GRE), ge- (Gigabit Ethernet), xe- (10-Gigabit Ethernet), and et- (40-Gigabit and 100-Gigabit Ethernet) but junos don't give any errors.
yes, you can , but in most cases you need to clamp it in both directions
So i'm afraid tha I can't do for MX104/Mx204 routers?