[RP-PPPoE] v3.11: clients cant connect after some time

[Sascha W.]

he guys.

i discoverd another strange problem. i have about 50 customers on this
pppoe server. its the only one in this subnet.
after some days of uptime new clients cant connect. clients are all
DD-WRT with rp-pppoe 3.11 beta or final.


they send a PADI and the server answers with a PADO...nothing more happens.

root at .....:~# tcpdump |grep -e PADI -e  PADO -e PADR -e PADS
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on br0, link-type EN10MB (Ethernet), capture size 65535 bytes
20:14:23.261808 PPPoE PADI [Service-Name] [Host-Uniq 0x00006852]
20:14:23.266024 PPPoE PADO [AC-Name "xxxxx.xxxxx.xx"] [Service-Name]
[AC-Cookie 0x35203ABCC0CEB62D94AEEB9132561B2200000631] [Host-Uniq
0x00006852]
20:14:26.955254 PPPoE PADI [Service-Name] [Host-Uniq 0xE8020000]
20:14:26.958797 PPPoE PADO [AC-Name "xxxxx.xxxxx.de"] [Service-Name]
[AC-Cookie 0xA153F793033169EA939DBD460126891300000631] [Host-Uniq
0xE8020000]
20:14:31.954837 PPPoE PADI [Service-Name] [Host-Uniq 0xE8020000]
....over and over again


server stared with:
pppoe-server -k -I br0 -L 10.0.0.3 -i -x 100 -N 90 -R 10.0.0.30-120 -X
/var/run/pppoeserver.pid


45 connected clients. so enough free ip´s in the pool:
ifconfig |grep ppp -c
45


config:

nobsdcomp
nodeflate
nolzs
nomppc
nomppe
auth
refuse-eap
refuse-pap
refuse-chap
refuse-mschap
require-mschap-v2
nopcomp
mtu 1492
mru 1492
default-asyncmap
noipdefault
defaultroute
netmask 255.255.255.255
ip-up-script /tmp/pppoeserver/ip-up
ip-down-script /tmp/pppoeserver/ip-down
lcp-echo-interval 5
lcp-echo-failure 20
idle 0
proxyarp
ktune
ms-wins 10.0.0.3
ms-dns 10.0.0.10
login
plugin radius.so
plugin radattr.so
radius-config-file /tmp/pppoeserver/radius/radiusclient.conf


free ram:
root at BuedingerWeg:~# free
             total         used         free       shared      buffers
Mem:         60508        42964        17544            0         3736
-/+ buffers:              39228        21280
Swap:            0            0            0


when i restart (not reboot) the server everything is back to normal.


any hints?




regards
Sash
(DD-WRT)