09-10-2009 07:57 PM - edited 03-06-2019 07:41 AM
guys i have read some where that we shd config MTU size 1460for L2TP its recommended now iwe have a router on which L2TPv3 is config ......kindly see below
pseudowire-class XXXX
encapsulation l2tpv3
protocol l2tpv3 l2-dyn
ip local interface Loopback0
ip pmtu
now what is pmtu config under....scondly we want to change the mTU size to 1460 where i have to do it ....do i have to do it on loopback0 or Xconnect interface....i cant get my head around it....plz help me an dexplain do i have to change this pmtu as well
09-11-2009 03:29 AM
Hello Khan,
refer to the MTU handling section in L2TPv3 config guide
http://www.cisco.com/en/US/docs/ios/12_3t/12_3t2/feature/guide/gtl2tpv3.html#wp1042795
ip pmtu enables ip mtu path discovery so you may be fine already with this configuration.
Hope to help
Giuseppe
09-12-2009 05:11 AM
Hi Giuseppe
Thankyou very much for your help as its always very help....Now i have a quick question we have a site which has 2800 series router and that site is connecting over a WAN to data centre making a L2Tp tunnel....there is a server stack at the data centre and when from client site pc we do extended ping there is a 3 to 2 % packet loss.....now after digging info we couldnt find anything wrong in the connection....now we have decided that to put sniffer wireshark at on server and on same time on client pc (client ssh the servers ) to see what actually is happening the problem is that client is using putty and the connection get drop frequently some time after 4 min some time after 10 min....so its not too stable....now i have never used wireshark can you give some good tips what to config in wireshark and how to do that....how we filter SSh traffic i want to see the specifi conection.....any help from your side would be a gr8 one as its always help me....thanks and waiting for your response (plz tell me the steps to do in wireshark and any other help)
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