VB104W Modem/Router Thread

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2 posts

Wannabe Geek

#1013575 27-Mar-2014 02:05

Hack time? some serial console goodness + get telnet/ssh password.

And see if SNR is adjustable...

~ $ wan vdsl2 set target_snrm 2560 (512 * dB)
~ $ wan adsl reset
~ $ adslphxcmd info --show
adslphxcmd: ADSL driver and PHY status
Status Showtime
Channel: Fast, Upstream rate = 5820 Kbps, Downstream rate = 18686 Kbps
Link Power State: L0
Mode: ITU G.993.2(VDSL2)
Channel: Fast
Line Status: Not Link Up
Training Status: Showtime
Down Up
SNR (dB): 5.0 11.9
Attn (dB): 18.0 102.3
Pwr (dBm): 8.0 8.1
Max(Kbps): 0 0
Rate (Kbps): 18686 5820

~ $ cat /proc/meminfo
MemTotal: 60552 kB
MemFree: 23400 kB
Buffers: 3352 kB
Cached: 11656 kB
.......

Couple of tmpfs mounts for /var .. logging etc, all the logging is pretty freaking verbose, just wasting even more memory.

Runs Dropbear (SSH) but it's blocked by iptables, waste of memory!:

416 root 1556 SW /usr/sbin/dropbear

Removing these rules allows SSH:

Chain ACL_LOCAL_INPUT (1 references)
target prot opt source destination
DROP tcp -- anywhere anywhere tcp dpt:ftp
DROP tcp -- anywhere anywhere tcp dpt:ftp
ACCEPT tcp -- anywhere anywhere tcp dpt:80
DROP tcp -- anywhere anywhere tcp dpt:80
ACCEPT icmp -- anywhere anywhere state NEW
DROP icmp -- anywhere anywhere state NEW
DROP udp -- anywhere anywhere udp dpt:161
DROP udp -- anywhere anywhere udp dpt:161
DROP tcp -- anywhere anywhere tcp dpt:22
DROP tcp -- anywhere anywhere tcp dpt:22
ACCEPT tcp -- anywhere anywhere tcp dpt:telnet
DROP tcp -- anywhere anywhere tcp dpt:telnet
DROP udp -- anywhere anywhere udp dpt:tftp
DROP udp -- anywhere anywhere udp dpt:tftp
ACCEPT udp -- anywhere anywhere udp dpt:53
DROP udp -- anywhere anywhere udp dpt:53
DROP tcp -- anywhere anywhere tcp dpt:7547
DROP tcp -- anywhere anywhere tcp dpt:7547

A few weird services running and listening, haven't dug into it, they 39425 appears to be HTTP:

/var $ netstat -lt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 *:39425 *:* LISTEN
tcp 0 0 *:ftp *:* LISTEN
tcp 0 0 *:telnet *:* LISTEN
tcp 0 0 *:80 *:* LISTEN
tcp 0 0 *:22 *:* LISTEN
tcp 0 0 *:7547 *:* LISTEN

Firmware is pretty crappy, DSL chipset is crap, even with SNR hack - syncs lower than other standard equivalents.

hio77

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Lizard Networks

#1013576 27-Mar-2014 02:09

im impressed. looks like you have had alot of fun with it!

on a slightly related note, wow your connection is horrid, im not sure how chorus let you keen it even.

#include <std_disclaimer>

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

lolhax

2 posts

Wannabe Geek

#1013577 27-Mar-2014 02:17

hio77: im impressed. looks like you have had alot of fun with it!

on a slightly related note, wow your connection is horrid, im not sure how chorus let you keen it even.

Yeah it is pretty crap, does ~21mbit/5mbit on a Fritz @ 6dB, that's +1-2mbit better on the downstream and +4mbit on the upstream over ADSL2+ and it's basically the same price so why not.

Originally when it went in I called Slingshot the following day, they just shoveled the DLM bullcrap about how it needs time to adjust, yep it'll adjust that attenuation right out! - ofc nothing changed over time other than the interleaving etc, haven't bothered calling them again.

hio77

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Lizard Networks

#1013578 27-Mar-2014 02:19

lolhax:
hio77: im impressed. looks like you have had alot of fun with it!

on a slightly related note, wow your connection is horrid, im not sure how chorus let you keen it even.

Yeah it is pretty crap, does ~21mbit/5mbit on a Fritz @ 6dB, that's +1-2mbit better on the downstream and +4mbit on the upstream over ADSL2+ and it's basically the same price so why not.

Originally when it went in I called Slingshot the following day, they just shoveled the DLM bullcrap about how it needs time to adjust, yep it'll adjust that attenuation right out! - ofc nothing changed over time other than the interleaving etc, haven't bothered calling them again.

clearly your happy to tweak, long as you keep an eye on your error rates, well done.

certainly taking it to the extra degree connecting directly to the terminal like that!

what was your line like pre tweaking?

#include <std_disclaimer>

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

NZCrusader

646 posts

Ultimate Geek

#1013638 27-Mar-2014 09:10

Lolhax thats some great information.

Does explain why SSH never worked.

NZ / AU Battlefield 4 Gaming Community
http://www.sonsofvalour.net/forums/forum.php

nigelj

856 posts

Ultimate Geek

#1013842 27-Mar-2014 13:08

lolhax: Removing these rules allows SSH:

Chain ACL_LOCAL_INPUT (1 references)
target prot opt source destination
DROP tcp -- anywhere anywhere tcp dpt:ftp
DROP tcp -- anywhere anywhere tcp dpt:ftp
ACCEPT tcp -- anywhere anywhere tcp dpt:80
DROP tcp -- anywhere anywhere tcp dpt:80
ACCEPT icmp -- anywhere anywhere state NEW
DROP icmp -- anywhere anywhere state NEW
DROP udp -- anywhere anywhere udp dpt:161
DROP udp -- anywhere anywhere udp dpt:161
DROP tcp -- anywhere anywhere tcp dpt:22
DROP tcp -- anywhere anywhere tcp dpt:22
ACCEPT tcp -- anywhere anywhere tcp dpt:telnet
DROP tcp -- anywhere anywhere tcp dpt:telnet
DROP udp -- anywhere anywhere udp dpt:tftp
DROP udp -- anywhere anywhere udp dpt:tftp
ACCEPT udp -- anywhere anywhere udp dpt:53
DROP udp -- anywhere anywhere udp dpt:53
DROP tcp -- anywhere anywhere tcp dpt:7547
DROP tcp -- anywhere anywhere tcp dpt:7547

Just got to say it. Only one of those port 22 rules should be removed/changed to ACCEPT, One will be on the WAN side and the other on the LAN side, you certainly don't want those pesky SSH-bots attacking your poorly built router.

lordjagganath

2 posts

Wannabe Geek

#1015014 29-Mar-2014 12:20

Hey there gentlefolk!
Just got the VDSL from the 26th and have been happy with it, until i started fiddling with it.
I wanted to use the SAMBA, but I cannot seem to find the NAS on my Win7 Ultimate system. But this is a minor issue.
Also, after the firmware update to ver 32, the internet seemed to freeze up, checking the log, seemed that the date somehow reverted to 1970-1-1. and then back to today's date after a restart.
I wonder if I could get the older firmware (ver 28) to reset this issue?

Quic Broadband

Move to New Zealand's best fibre broadband service (affiliate link). Free setup code: R587125ERQ6VE. Note that to use Quic Broadband you must be comfortable with configuring your own router.

Anodyne

12 posts

Geek

#1015170 29-Mar-2014 20:33

lordjagganath, Slingshot automatically manages the firmware version, updating it over the net, so even if you can get the old firmware to roll back to, it wont stay that way.

Anodyne

12 posts

Geek

#1015171 29-Mar-2014 20:37

Does anyone know if it is possible to get Slingshot (or Chorus?) to increase the frequency of DLM polling as if it was the first few days of the connection? I've now got a DSL-N66U to replace the slowly improving but essentially tedious VB104W. I imagine that the results of DLM polling will be quite different now but I don't want to have to wait 6 months to find out if I can avoid it!

hio77

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Lizard Networks

#1015180 29-Mar-2014 21:16

Anodyne: Does anyone know if it is possible to get Slingshot (or Chorus?) to increase the frequency of DLM polling as if it was the first few days of the connection? I've now got a DSL-N66U to replace the slowly improving but essentially tedious VB104W. I imagine that the results of DLM polling will be quite different now but I don't want to have to wait 6 months to find out if I can avoid it!

yes, you need to ask for a "DLM Reset".

#include <std_disclaimer>

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

Anodyne

12 posts

Geek

#1015194 29-Mar-2014 21:42

Thanks hio77!

Neori

82 posts

Master Geek

2degrees

#1015488 30-Mar-2014 18:06

hio77:
Anodyne: Does anyone know if it is possible to get Slingshot (or Chorus?) to increase the frequency of DLM polling as if it was the first few days of the connection? I've now got a DSL-N66U to replace the slowly improving but essentially tedious VB104W. I imagine that the results of DLM polling will be quite different now but I don't want to have to wait 6 months to find out if I can avoid it!

yes, you need to ask for a "DLM Reset".

Can they actually perform a DLM reset? If so, do you know what the process is for one (as in what happens once you ask for it)? Cheers.

hio77

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Lizard Networks

#1015497 30-Mar-2014 18:11

Neori:
hio77:
Anodyne: Does anyone know if it is possible to get Slingshot (or Chorus?) to increase the frequency of DLM polling as if it was the first few days of the connection? I've now got a DSL-N66U to replace the slowly improving but essentially tedious VB104W. I imagine that the results of DLM polling will be quite different now but I don't want to have to wait 6 months to find out if I can avoid it!

yes, you need to ask for a "DLM Reset".

Can they actually perform a DLM reset? If so, do you know what the process is for one (as in what happens once you ask for it)? Cheers.

there are two methods for DLM resets i have had.

first being a port refresh ordered on the ISPs side, which in turn resets DLM.

second being ISP requests for chorus to do a reset, chorus do it the next day (they only click a button afterall prettymuch.)

its a very painless task, by the next day it should be reset.

#include <std_disclaimer>

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

lordjagganath

2 posts

Wannabe Geek

#1015713 30-Mar-2014 22:25

Thanks for the response guys.

However,
I have been having internet disconnections over the past day at these times,

5.47pm 30/03/14
7.24pm 30/03/14
9.12pm 30/03/14
9.59pm 30/03/14

and it reset it each time (modem) powering off/on to get the internet back)
Would it make any difference if I switch the logging function off? stopping it from collecting any logs? The following is my log for the day
1970-01-01 13:00:46 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
1970-01-01 13:00:46 [5] syslog: Accessor:[CPE] Method:[PPPoE] Para:[User=<email> ip=XXXX] Result:[0] Wan Link was Connected
1970-01-01 13:00:46 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
1970-01-01 13:00:56 [6] syslog: Accessor:[ACS] Method:[GetNoti] Para:[] Result:[00000000]
1970-01-01 13:00:58 [6] syslog: Accessor:[ACS] Method:[ClearNoti] Para:[] Result:[00000000]
2014-03-30 09:59:53 [5] syslog: Accessor:[CPE] Method:[AUTH] Para:[] Result:[9007] Not found session 6c3505fd, user login check failed
2014-03-30 09:59:55 [5] syslog: Accessor:[CPE] Method:[AUTH] Para:[] Result:[] User admin login success
1970-01-01 13:01:12 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
1970-01-01 13:01:12 [5] syslog: Accessor:[CPE] Method:[PPPoE] Para:[User=<email> ip=XXXX] Result:[0] Wan Link was Connected
1970-01-01 13:01:25 [6] syslog: Accessor:[ACS] Method:[GetNoti] Para:[] Result:[00000000]
1970-01-01 13:01:26 [6] syslog: Accessor:[ACS] Method:[ClearNoti] Para:[] Result:[00000000]
2014-03-30 17:53:15 [5] syslog: Accessor:[CPE] Method:[AUTH] Para:[] Result:[9007] Not found session 2c66c2a, user login check failed
2014-03-30 17:53:17 [5] syslog: Accessor:[CPE] Method:[AUTH] Para:[] Result:[] User admin login success
1970-01-01 13:00:47 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
1970-01-01 13:00:47 [5] syslog: Accessor:[CPE] Method:[PPPoE] Para:[User=<email> ip=XXXX] Result:[0] Wan Link was Connected
2014-03-30 19:34:31 [6] syslog: Accessor:[ACS] Method:[GetNoti] Para:[] Result:[00000000]
2014-03-30 19:34:32 [6] syslog: Accessor:[ACS] Method:[ClearNoti] Para:[] Result:[00000000]
2014-03-30 19:35:14 [5] syslog: Accessor:[CPE] Method:[PPPoE] Para:[] Result:[9001] Wan Link was Disconnected
2014-03-30 19:35:14 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
2014-03-30 19:35:14 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
2014-03-30 19:35:33 [5] syslog: Accessor:[CPE] Method:[INFORM] Para:[] Result:[0] CPE periodically inform to ACS!
2014-03-30 19:35:51 [5] syslog: Accessor:[CPE] Method:[INFORM] Para:[] Result:[0] CPE periodically inform to ACS!
2014-03-30 19:35:53 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
2014-03-30 19:35:53 [5] syslog: Accessor:[CPE] Method:[PPPoE] Para:[User=<email> ip=XXXX] Result:[0] Wan Link was Connected
2014-03-30 19:35:53 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
2014-03-30 19:36:00 [6] syslog: Accessor:[ACS] Method:[GetNoti] Para:[] Result:[00000000]
2014-03-30 19:36:02 [6] syslog: Accessor:[ACS] Method:[ClearNoti] Para:[] Result:[00000000]
2014-03-30 19:36:41 [5] syslog: Accessor:[CPE] Method:[PPPoE] Para:[] Result:[9001] Wan Link was Disconnected
2014-03-30 19:36:41 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
2014-03-30 19:36:41 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
2014-03-30 19:37:00 [5] syslog: Accessor:[CPE] Method:[INFORM] Para:[] Result:[0] CPE periodically inform to ACS!
2014-03-30 19:37:18 [5] syslog: Accessor:[CPE] Method:[INFORM] Para:[] Result:[0] CPE periodically inform to ACS!
2014-03-30 19:37:51 [5] syslog: Accessor:[CPE] Method:[INFORM] Para:[] Result:[0] CPE periodically inform to ACS!
2014-03-30 19:38:31 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
2014-03-30 19:38:31 [5] syslog: Accessor:[CPE] Method:[PPPoE] Para:[User=<email> ip=XXXX] Result:[0] Wan Link was Connected
2014-03-30 19:38:31 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
2014-03-30 19:38:57 [5] syslog: Accessor:[CPE] Method:[PPPoE] Para:[] Result:[9001] Wan Link was Disconnected
2014-03-30 19:38:57 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
2014-03-30 19:38:58 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
2014-03-30 19:39:18 [5] syslog: Accessor:[CPE] Method:[INFORM] Para:[] Result:[0] CPE periodically inform to ACS!
2014-03-30 19:39:32 [5] syslog: Accessor:[CPE] Method:[INFORM] Para:[] Result:[0] CPE periodically inform to ACS!
2014-03-30 19:39:54 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
2014-03-30 19:39:54 [5] syslog: Accessor:[CPE] Method:[PPPoE] Para:[User=<email> ip=XXXX] Result:[0] Wan Link was Connected
2014-03-30 19:39:54 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
2014-03-30 19:40:00 [6] syslog: Accessor:[ACS] Method:[GetNoti] Para:[] Result:[00000000]
2014-03-30 19:40:01 [6] syslog: Accessor:[ACS] Method:[ClearNoti] Para:[] Result:[00000000]
1970-01-01 13:00:50 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
1970-01-01 13:00:50 [5] syslog: Accessor:[CPE] Method:[PPPoE] Para:[User=<email> ip=XXXX] Result:[0] Wan Link was Connected
1970-01-01 13:00:57 [6] syslog: Accessor:[ACS] Method:[GetNoti] Para:[] Result:[00000000]
1970-01-01 13:00:58 [6] syslog: Accessor:[ACS] Method:[ClearNoti] Para:[] Result:[00000000]
1970-01-01 13:01:15 [6] syslog: Accessor:[CPE] Method:[NotiInform] Para:[type=2] Result:[0]
1970-01-01 13:01:15 [5] syslog: Accessor:[CPE] Method:[PPPoE] Para:[User=<email> ip=XXXX] Result:[0] Wan Link was Connected
2014-03-30 22:05:14 [6] syslog: Accessor:[ACS] Method:[GetNoti] Para:[] Result:[00000000]
2014-03-30 22:05:15 [6] syslog: Accessor:[ACS] Method:[ClearNoti] Para:[] Result:[00000000]

Item

1717 posts

Uber Geek

Subscriber

#1015715 30-Mar-2014 22:25

Anodyne: Does anyone know if it is possible to get Slingshot (or Chorus?) to increase the frequency of DLM polling as if it was the first few days of the connection? I've now got a DSL-N66U to replace the slowly improving but essentially tedious VB104W. I imagine that the results of DLM polling will be quite different now but I don't want to have to wait 6 months to find out if I can avoid it!

I got the same router/modem to replace my VB104W recently
With the latest firmware (1.0.7.0), it has a stability adjustment section for VDSL as well as ADSL2, similar to the 55u I had previously...I set mine to the max (5db) and saw my downstream go from 30ish on a good day to just a hair over 40 most the time now. Haven't seen any issues with reliability or errors as a result of the adjustment either.
The wireless is tons better too, so pretty happy.

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