Hello,
I set up a PPPoE server on FreeBSD 7.0(amd64) with mpd 5.1 and it works
fine for all clients except for my FreeBSD 7.0(i386) Notebook.
Connecting has no problem and I get ip but all website can not be access
even on PPPoE server itself(Apache installed), so can not ftp site.
I've used mpd 5.1_1 and pppoe(built-in) as pppoe client but the
problem was same - can not access http/ftp..., only icmp works. I think
the problem is MTU then changed that but no effects. Now my configuration:
PPPoE Server:
startup:
set netflow peer 127.0.0.1 1813
set user admin xxxxx admin
set user operator xxxxx operator
set user user xxxxx user
set console open
default:
load pppoe_server
pppoe_server:
create bundle template B
set ippool add pool 10.0.0.100 10.0.0.200
set iface enable netflow-in
set iface enable netflow-out
set iface enable ipacct
set iface enable proxy-arp
set iface mtu 1460 <-----------------------!
set ipcp ranges 10.0.0.1/32 ippool pool
set ipcp dns 172.18.30.125
create link template common pppoe
set link enable pap
set link disable chap
set link enable multilink
set link action bundle B
load radius
create link template em0 common
set link max-children 1000
set pppoe iface em0
set link enable incoming
radius:
set radius server 127.0.0.1 xxxxxxxx 1812 1813
set radius retries 3
set radius timeout 3
set radius me 127.0.0.1
set auth max-logins 1
set auth acct-update 300
set auth enable radius-auth
set auth enable radius-acct
set radius enable message-authentic
PPPoE client:
startup:
set user admin xxxxx admin
set console open
default:
load pppoe_client
pppoe_client:
create bundle static B1
set iface route default
set ipcp ranges 0.0.0.0/0 0.0.0.0/0
create link static L1 pppoe
set link action bundle B1
set auth authname xxxxxx
set auth password xxxxxx
set link max-redial 0
set link keep-alive 10 60
set pppoe iface em0
set pppoe service ""
open
After connected:
PPPoE server:
ng15: flags=88d1<UP,POINTOPOINT,RUNNING,NOARP,SIMPLEX,MULTICAST> metric
0 mtu 1460
inet 10.0.0.1 --> 10.0.0.115 netmask 0xffffffff
PPPoE client:
ng0: flags=88d1<UP,POINTOPOINT,RUNNING,NOARP,SIMPLEX,MULTICAST> metric 0
mtu 1460
inet 10.0.0.115 --> 10.0.0.1 netmask 0xffffffff
tcpdump output:
PPPoE server:
pppoe# tcpdump -i ng15 -ln host 10.0.0.1
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on ng15, link-type NULL (BSD loopback), capture size 96 bytes
10:08:44.469993 IP 10.0.0.115.60331 > 10.0.0.1.80: S
2092758811:2092758811(0) win 65535 <mss 1420,nop,wscale
3,sackOK,timestamp 4639873 0>
10:08:44.470056 IP 10.0.0.1.80 > 10.0.0.115.60331: S
687014728:687014728(0) ack 2092758812 win 65535 <mss 1420,nop,wscale
3,sackOK,timestamp 1602770998 4639873>
10:08:47.469997 IP 10.0.0.1.80 > 10.0.0.115.60331: S
687014728:687014728(0) ack 2092758812 win 65535 <mss 1420,nop,wscale
3,sackOK,timestamp 1602770998 4639873>
10:08:53.469978 IP 10.0.0.1.80 > 10.0.0.115.60331: S
687014728:687014728(0) ack 2092758812 win 65535 <mss 1420,nop,wscale
3,sackOK,timestamp 1602770998 4639873>
10:09:05.469918 IP 10.0.0.1.80 > 10.0.0.115.60331: S
687014728:687014728(0) ack 2092758812 win 65535 <mss 1420,nop,wscale
3,sackOK,timestamp 1602770998 4639873>
10:09:44.972709 IP 10.0.0.115.60331 > 10.0.0.1.80: F 1:1(0) ack 1 win
8272 <nop,nop,timestamp 4700375 1602770998>
10:09:44.972744 IP 10.0.0.1.80 > 10.0.0.115.60331: R
687014729:687014729(0) win 0
PPPoE client:
r00t# tcpdump -i ng0 -ln host 10.0.0.1
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on ng0, link-type NULL (BSD loopback), capture size 96 bytes
10:12:06.792399 IP 10.0.0.115.60331 > 10.0.0.1.80: S
2092758811:2092758811(0) win 65535 <mss 1420,nop,wscale
3,sackOK,timestamp 4639873 0>
10:12:06.793151 IP 10.0.0.1.80 > 10.0.0.115.60331: S
687014728:687014728(0) ack 2092758812 win 65535 <mss 1420,nop,wscale
3,sackOK,timestamp 1602770998 4639873>
10:12:06.793178 IP 10.0.0.115.60331 > 10.0.0.1.80: . ack 1 win 8272
<nop,nop,timestamp 4639873 1602770998>
10:12:09.793385 IP 10.0.0.1.80 > 10.0.0.115.60331: S
687014728:687014728(0) ack 2092758812 win 65535 <mss 1420,nop,wscale
3,sackOK,timestamp 1602770998 4639873>
10:12:09.793414 IP 10.0.0.115.60331 > 10.0.0.1.80: . ack 1 win 8272
<nop,nop,timestamp 4642874 1602770998>
10:12:15.793331 IP 10.0.0.1.80 > 10.0.0.115.60331: S
687014728:687014728(0) ack 2092758812 win 65535 <mss 1420,nop,wscale
3,sackOK,timestamp 1602770998 4639873>
10:12:15.793358 IP 10.0.0.115.60331 > 10.0.0.1.80: . ack 1 win 8272
<nop,nop,timestamp 4648874 1602770998>
10:12:27.793227 IP 10.0.0.1.80 > 10.0.0.115.60331: S
687014728:687014728(0) ack 2092758812 win 65535 <mss 1420,nop,wscale
3,sackOK,timestamp 1602770998 4639873>
10:12:27.793255 IP 10.0.0.115.60331 > 10.0.0.1.80: . ack 1 win 8272
<nop,nop,timestamp 4660874 1602770998>
10:13:07.294273 IP 10.0.0.115.60331 > 10.0.0.1.80: F 1:1(0) ack 1 win
8272 <nop,nop,timestamp 4700375 1602770998>
10:13:07.295358 IP 10.0.0.1.80 > 10.0.0.115.60331: R
687014729:687014729(0) win 0
As you can see, tcp/ack from client can not go through but tcp/syn,
tcp/fin are fine.
What's the reason? I've used the same client to connect to ISP's ADSL
and work fine so what I am sure is the server refused my tcp/ack. But why?
Thanks all.
BSD4LZX
!DSPAM:487eacd27993450375810!
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