Hi all,

We have a litle problem with our NPE-G1, We use this router to terminate cca
3000 L2TP sessions and PPPoE. Some days ago, many customer have a problem with VPN, browsing, etc...We try to
find the problem what's wrong. We check the customer, also some CPE router
config..., but we found interesting things in our Termination router: The
Virtual-access interface MTU is BIGGER than than his mother(Virtual-Template 1)
MTU !!!

If I clear manualy the Vi intarface; next time when the Router come up the
interface will be ok with MTU of 1492... and some time later the interface go wrong and will be again MTU of 1512 :-( I dont know how this is possible, because of the config is very simple without
any fancy feature and works fine couple of times...

Any idea ???

THX

gyebi

Virtual-Access61 is up, line protocol is up Hardware is Virtual Access interface Interface is unnumbered. Using address of GigabitEthernet0/1 (195.228.xx.yy) MTU 1512 bytes, BW 3735 Kbit, DLY 100000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, LCP Open, multilink Closed Open: IPCP PPPoVPDN vaccess, cloned from Virtual-Template1 Vaccess status 0x44 .......

interface Virtual-Template1 mtu 1492 ip unnumbered GigabitEthernet0/1 no ip unreachables no logging event link-status peer default ip address pool adsl1 keepalive 30 ppp authentication pap ppp multilink no clns route-cache

! vpdn-group adsl ! Default L2TP VPDN group ! Default PPTP VPDN group accept-dialin protocol any virtual-template 1 local name XXX lcp renegotiation on-mismatch !

System image file is "c7200-jk9o3s-mz.123-10a.bin"