losing conn to pppoe server [long]

Hello,
I've got rp-pppoe 3.8 server with attached conf. The server is
utilizing about 20-30% percent of cpu usage and serves internet for
about 100 users (the rest of users use the dhcp). Sometimes users
cannot use the website that is placed on the server - they say that it
simply "hangs up" .. I've tcpdumped some pppX interfaces that they use
... on some interfaces i've found something like this (12000 is a port
for app they use).

I see nothing in pppoe logs, the interface is not down or sth.. they
simply get the RESET (afaik it's this R thing) flag ....

anyone has any ideas ?


16:34:57.718133 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669348:860669348(0) win 65139
16:34:57.766126 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669400:860669400(0) win 65139
16:34:57.795870 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669452:860669452(0) win 65139
16:34:57.831896 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669504:860669504(0) win 65139
16:34:57.965893 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669556:860669556(0) win 65139
16:34:57.997848 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669608:860669608(0) win 65139
16:34:58.048495 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669660:860669660(0) win 65139
16:34:58.390632 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860668724:860668724(0) win 65139
16:34:58.749659 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669712:860669712(0) win 65139
16:34:58.791929 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669764:860669764(0) win 65139
16:34:58.858071 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669816:860669816(0) win 65139
16:34:59.053325 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669868:860669868(0) win 65139
16:34:59.101435 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669920:860669920(0) win 65139
16:34:59.139097 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860669972:860669972(0) win 65139
16:35:00.807426 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860668724:860668724(0) win 65139
16:35:05.640543 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
860668724:860668724(0) win 65139



beta wojtek # cat /etc/ppp/pppoe-server-options
# PPP options for the PPPoE server
# LIC: GPL
mtu 1492
mru 1492
auth
login
require-pap
lcp-echo-interval 20
lcp-echo-failure 5
lcp-max-configure 30
ms-dns 217.17.34.10
ms-dns 217.17.38.254
ms-dns 217.17.38.2
noipdefault
defaultroute
noproxyarp
ktune
netmask 255.255.255.0
plugin radius.so
plugin radattr.so
logfile /var/log/pppd-server.log
beta wojtek #


REGARDS ....

(E-Mail Removed) wrote:
> Hello,
> I've got rp-pppoe 3.8 server with attached conf. The server is
> utilizing about 20-30% percent of cpu usage and serves internet for
> about 100 users (the rest of users use the dhcp). Sometimes users
> cannot use the website that is placed on the server - they say that it
> simply "hangs up" .. I've tcpdumped some pppX interfaces that they use
> .. on some interfaces i've found something like this (12000 is a port
> for app they use).
>
> I see nothing in pppoe logs, the interface is not down or sth.. they
> simply get the RESET (afaik it's this R thing) flag ....
>
> anyone has any ideas ?
>
>
> 16:34:57.718133 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669348:860669348(0) win 65139
> 16:34:57.766126 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669400:860669400(0) win 65139
> 16:34:57.795870 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669452:860669452(0) win 65139
> 16:34:57.831896 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669504:860669504(0) win 65139
> 16:34:57.965893 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669556:860669556(0) win 65139
> 16:34:57.997848 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669608:860669608(0) win 65139
> 16:34:58.048495 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669660:860669660(0) win 65139
> 16:34:58.390632 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860668724:860668724(0) win 65139
> 16:34:58.749659 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669712:860669712(0) win 65139
> 16:34:58.791929 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669764:860669764(0) win 65139
> 16:34:58.858071 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669816:860669816(0) win 65139
> 16:34:59.053325 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669868:860669868(0) win 65139
> 16:34:59.101435 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669920:860669920(0) win 65139
> 16:34:59.139097 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860669972:860669972(0) win 65139
> 16:35:00.807426 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860668724:860668724(0) win 65139
> 16:35:05.640543 IP 10.100.2.250.2325 > beta.cebit.com.pl.12000: R
> 860668724:860668724(0) win 65139
>
>
>
> beta wojtek # cat /etc/ppp/pppoe-server-options
> # PPP options for the PPPoE server
> # LIC: GPL
> mtu 1492
> mru 1492
> auth
> login
> require-pap
> lcp-echo-interval 20
> lcp-echo-failure 5
> lcp-max-configure 30
> ms-dns 217.17.34.10
> ms-dns 217.17.38.254
> ms-dns 217.17.38.2
> noipdefault
> defaultroute
> noproxyarp
> ktune
> netmask 255.255.255.0
> plugin radius.so
> plugin radattr.so
> logfile /var/log/pppd-server.log
> beta wojtek #
>
>
> REGARDS ....

Just a thought, have you tried lowering the mtu or just using
"default-mru" in that conf file? You might like to scan over this
document at http://www.freeantennas.com/PPPoE-Server-HOWTO.html and let
us know!


--
Raqueeb Hassan
Bangladesh