IP over PPP

Dec 07, 2007 6 Replies

Hello and thank you for helping us all people!



I have this architecture: Net1 - Router 1 E1 --------------------- E1 Router 2 - Net 2



I am currently using PPP over E1 to bridge Net 1 and Net 2. However I want to remove any overhead contained in the PPP payload. to be exact, I want to remove the Ethernet headers and only leave the IP headers that I carry.



Have you heard of a way to remove bridge/route on layer 3 so no Ethernet headers exists in the PPP payload? Thank you!


Hello snipped-for-privacy@gmail.com,

If you route the traffic all ethernet specific stuff is dropped. When you bridge two LAN's the overhead needs to be intact.

Thank you for your reply Helge. I am not happy about this, but it was nice to know the truth. :-)

Net1 - Router 1 E1 --------------------- E1 Router 2 - Router 3 What I am still trying is to route traffic from Router 3 to Router 2 without Ethernet frames. Router 2 acts as a transparent L2 bridge. I may try a point to point link between Router 2 and Router 3.

So what is the bottom-line issue that you are trying to address ?

Is it bandwidth consumption, latency ... ?

Yes, you are right. :-) The problem is the bandwidth consumption.

By the way, if somebody is wondering how to achieve L2 bridging, here is how: Interface ethernet 0 bridge-group 1

Interface ethernet 1 bridge-group 1

bridge 1 protocol ieee

Of course, you can use serial interfaces or so, instead of ethernet.

Thank you all for reading, del_lover

see Cisco docs

WAN Compression FAQs

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Understanding Data Compression

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Nice hint thank you! I am not sure if I am gonna use it, but it is nice anyway.

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