3Com Router 3000 Ethernet FamilyConfiguration Guide Chapter 2 Configuration of L2TP3Com Corporation2-33[3Com2-l2tp3] allow l2tp virtual-template 1 remote LAC domain 263.net[3Com2-l2tp3] tunnel password simple 12345[3Com2-l2tp3] l2tp-group 4[3Com2-l2tp4] tunnel authentication[3Com2-l2tp4] allow l2tp virtual-template 2 remote LAC domain 163.net[3Com2-l2tp4] tunnel password simple 12345If the LSN side requires RADIUS authentication, you simply need to change the AAAconfiguration in the configurations described above.2.5.5 Using LAC as L2TP ClientI. Network requirementsThe LAC-side router functions as L2TP client, setting up permanent connection withLNS. All data from the connected private network is forwarded using the connection tothe LNS.II. Network diagramInternetRouterA RouterBLA C LNSV T1:192.168.0.20Privatenetw ork10.2.0.0Privatenetw ork10.1.0.03.3.3.2s1/0/0Figure 2-10 Network diagram for using LAC as the L2TP clientIII. Configuration procedure1) Configure Router A, or the LAC-side router# Enable L2TP and create an L2TP group[RouterA] l2tp enable[RouterA] l2tp-group 1# Configure the local tunnel name and the IP address of LNS[RouterA-l2tp1] tunnel name LAC[RouterA-l2tp1] start l2tp ip 3.3.3.2 fullusername vpdnuser# Enable tunnel authentication and set the password[RouterA-l2tp1] tunnel authentication[RouterA-l2tp1] tunnel password simple 3Com[RouterA-l2tp1] quit# Configure virtual-template 1[RouterA] interface virtual-template 1
