[c-nsp] Cisco vpdn multihop

Oliver Boehmer (oboehmer) oboehmer at cisco.com
Thu Oct 1 12:37:09 EDT 2020

    I am cleaning up a cisco lac/tunnelswich/lns setup historically grown. 

    Do I need the "vpdn multihop" statement on the final LNS 
    which should only terminate the ppp sessions inside the l2tp tunnels 
    and not forward them based on realm/domain-name/... in my setup? 

    One example in cisco's documentation has it on all three Devices 
    while an other has it only on the tunnelswitch. 

    (ok, I could test it in the night the hard way) 

    Thank you for your advice on this, 


Lol, my VPDN skills are, errm, rusty, but I recall the only scenario where you would need vpdn multihop on the final LNS is when you run them in a MPP/SGBP group to terminate multilink-PPP sessions (in which case the final LNS isn't actually final, so this makes perfect sense IMHO)


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