netscape & ppp [solution]

netscape & ppp [solution]

Post by Chris Szilagy » Fri, 03 Dec 1999 04:00:00

Just wanted to share a problem i've been having with Netscape and ppp.
I was having problems sending out email messages with Netscape Mail over
a certain size... it would sit and wait when it said "Message Sent;
waiting for reply...".  I would also get various errors while on secure
websites like "document contains no data", "host not responding", etc.
Well the problem that i found was that the default MRU & MTU are set to
1500.  Bringing them both down to 576 for PPP solved the problem.  You
can do this easiest in Linuxconf.  Hope this helps others with the same



1. ppp && PPPoE && ADSL && net && buffer(s)

i have a freebsd box (4.8-RELEASE) and a italian ADSL (256/128 if i remember good) line.
sometimes my freebsd box (that i use as firewall in my little lan) became stalled.
no data arrive and with ping IP i get error about some buffers full.
in ppp.log i see a lot of:
Jun 24 22:45:39 firewall ppp[66]: tun0: Phase: Clearing choked output queue

i search with google on newsgroups but i don't find nothing that work :)

i put some info on the configuration, because i read a lot of question about this parameters :)

kernel config:
maxusers        64
options         NMBCLUSTERS=32768       #expand nic buffer

in ppp.conf:
add default HISADDR

netstat -m:
1/400/131072 mbufs in use (current/peak/max):
        1 mbufs allocated to data
0/182/32768 mbuf clusters in use (current/peak/max)
464 Kbytes allocated to network (0% of mb_map in use)
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines

netstat -t:
Destination        Gateway            Flags    Refs      Use  Netif Expire
default        UGSc       15  8181837   tun0
localhost          localhost          UH         11   116358    lo0
192.168.0          link#1             UC          3        0    rl0
firewall           00:10:a7:06:7b:50  UHLW        3    31603    lo0
stefano            00:06:4f:01:08:86  UHLW       12 15328918    rl0    900      ff:ff:ff:ff:ff:ff  UHLWb       0     2635    rl0      hostXXX-172.pool62 UH         19        0   tun0

i hope that someone can help me :)


Stefano Balocco
RIPE handle:    6BONE-SB27
Keyserver: ID:     8EF05AB2
Fingerprint:    DF65 A9E5 E307 D647 9E41 1CD1 9265 BF7D 8EF0 5AB2

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