New Build - 04/15/2020 - r42910

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blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 3155

PostPosted: Wed Apr 15, 2020 19:43    Post subject: New Build - 04/15/2020 - r42910 Reply with quote
Flashing any beta build assumes you are responsible, have researched, know the risks and recovery methods.
If you don't understand your router, which file or recovery methods, do NOT flash this experimental test build.


This thread is for feedback on beta build r42910 for developers and users (configuration, status, errors & logs).
Avoid discussions, create a new thread for specific problems, questions or use search as this is not for support.
Please report hardware model, version, operating & wireless modes along with file name (factory, webflash).


Downloads: (DD-WRT website) HTTPS & FTP

CLI Flash: 'cd /tmp' then 'wget {file URL}' (or 'curl -k {file URL} -o {file}') with http (not https) or ftp. Then 'write {file} linux'.

Changelogs: SVN changelog since last build: r42872

Notes: 1. CVE-2019-14899 VPN fix from December, since then various revisions including recently 7040.
2. In-kernel Samba has been implemented this year and default min/max versions have changed, with WSD support.
3. VAP issue is fixed! For any Wireless Mode, create a VAP and both ath0/ath1 should now function properly.
4. WireGuard! New GUI Tunnel options have appeared since r42872, script no longer required!

Issues: 1. There may be remaining issues for Samba (for example NTFS), with frequent updates.

Important: if reporting issues, provide applicable info (syslog output, 'dmesg', 'cat /var/log/messages', serial output etc.)
or place into an SVN ticket. For firewall issues, also provide iptables info ('iptables -L', 'iptables -t nat -L', & the /tmp/.ipt file).
Be sure to include operating and wireless modes (Gateway, AP, CB, etc.) along with any relevant configuration information.

Example Template:
Code:
[b]Router/Version: [/b]
[b]Config/Mode: [/b]
[b]Status/Errors: [/b]
[b]File/Kernel: [/b]
[b]Previous/Reset: [/b]
Sponsor
ArjenR49
DD-WRT User


Joined: 05 Oct 2008
Posts: 433
Location: Helsinki, Finland

PostPosted: Wed Apr 15, 2020 20:13    Post subject: Reply with quote
Router/Version: R7800/42910
Config/Mode: router and wireless ap 2,4 & 5 GHz, VAP on both bands
Status/Errors: running fine, no errors
File/Kernel:
Previous/Reset: 42872, no reset
egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 8163
Location: Netherlands

PostPosted: Thu Apr 16, 2020 11:18    Post subject: Reply with quote
Router Model: Netgear R7800

Firmware Version: DD-WRT v3.0-r42910 std (04/15/20)
Kernel Version: Linux 4.9.219 #539 SMP Tue Apr 14 00:38:01 +03 2020 armv7l

Upgraded from: DD-WRT v3.0-r42872 std (04/10/20)

Reset: No, not this time

Status: Up and running for 4 hours , basic setup as Gateway, static leases, OpenVPN client (on PIA) with Policy Based Routing up and running, 2,4GHz, 5Ghz, OpenVPN server working, Wireguard working

Errors:
1. DNS leak see: http://svn.dd-wrt.com/ticket/6020

Otherwise build is fine

Resolved:
1. Pushed DNS servers from VPN provider are used starting with build 41120, if you do not want that, add the following to the Additional Config of the VPN client:
pull-filter ignore "dhcp-option DNS"
2. Build 41174 has an improved VPN Policy Based Routing, it is now possible to use the VPN route command i.e. to route a DNS server via the VPN (in this way you will get rid of the DNS leak), see: https://svn.dd-wrt.com/ticket/6815#comment:1 , and for DNS leaks the second posting of this thread: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=318662
3. Another improvement on PBR is that local routes are now copied over to the alternate routing table so there is communication if you have unbridged VAP's and you can set the router's IP on PBR.
See: https://svn.dd-wrt.com/ticket/6821#comment:3
4. Starting with build 41174, the PBR has become more versatile, you can now use " from [IP address] to [IP address] ", so if you enter the following in the PBR field:
192.168.1.124 to 95.85.16.212 #ipleak.net, it will only route IP address 95.85.16.212 (which is ip leak.net) from my IP address 192.168.1.124 via the VPN everything else from this IP address will route via the WAN (this is just an example).
See: https://svn.dd-wrt.com/ticket/6822
Although this command itself supports routing per port this is however only available starting from K 4.17 so we have to rely on scripting for per port routing until then.
5. New OpenVPN TLS ciphers are added in 41308 see: https://svn.dd-wrt.com/changeset/41308
6. Starting with build 41304 you can now choose which TLS Key you want to use: TLS Auth or the newer/better TLS Crypt. See https://svn.dd-wrt.com/ticket/6845#comment:17
7. Builds from 41786 onwards, when using an OVPN server to connect to your local LAN clients, access might be prevented because of a patch which should solve a recent vulnerability ( see: https://svn.dd-wrt.com/ticket/6928)
This can be mitigated with the following firewall rule:

Code:
iptables -t nat -I POSTROUTING -o br0 -s $(nvram get openvpn_net)/$(nvram get openvpn_tunmask) -j MASQUERADE

When using WireGuard you can run into the same trouble,i.e. not being able to access your local LAN clients. For WireGuard this is the workaround:
Code:
iptables -t nat -I POSTROUTING -o br0 -s $(nvram get oet1_ipaddr)/$(nvram get oet1_netmask) -j MASQUERADE

This method described above also has security and logging concerns as all traffic has the same source address (your router)
An alternate method is using the following rule but it only works if the VPN or Wireguard interface is up and if your VPN or Wireguard interface goes down you have to reapply or run a continuous script checking/applying:
OpenVPN server:

Code:
iptables -t raw -I PREROUTING -i br0 -d $(nvram get openvpn_net)/$(nvram get openvpn_tunmask) -j ACCEPT

WireGuard:
Code:
iptables -t raw -I PREROUTING -i br0 -d $(nvram get oet1_ipaddr)/$(nvram get oet1_netmask) -j ACCEPT

This rule can expose your LAN side to the CVE attack, but if you have your IOT things separated and tight control over your LAN you should be good, if your LAN is hacked you have got bigger problems.

Builds starting with 41813 have an option button in OpenVPN and Wireguard for disabling the CVE-patch 14899


Big Thanks to BS!!

_________________
Routers:Netgear R7800, R6400v1, R6400v2, Linksys EA8500, EA6900 (XvortexCFE), E2000 (converted WRT320N), WRT54GS v1.
WireGuard Documents & Guides:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=327397
OpenVPN Documents & Guides: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=327398
IPSET: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=327261
Install guide R6400v2:http://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
johnnyNobody999
DD-WRT User


Joined: 10 Jan 2014
Posts: 443

PostPosted: Thu Apr 16, 2020 15:26    Post subject: Reply with quote
Router/Version: Netgear R7800 (5 of them)
Config/Mode: WDS - 4 stations
Status/Errors: None noted
File/Kernel: dd-wrt-webupgrade-netgear_r7800-r42910.bin/4.9.219
Previous/Reset: No reset.
CoffeeVotary
DD-WRT Novice


Joined: 25 Mar 2020
Posts: 4

PostPosted: Thu Apr 16, 2020 17:37    Post subject: Reply with quote
Netgear XR500
DD-WRT 04/15/2020 - r42910
QoS using HTB, Cake
ACK, SYN, FIN, RST, ICMP
TCP Congestion Control: CDG
TX Queue Length 5000
Static Leases & DHCP
Xfinity 1Gbps/40Mbps
A+ Bufferbloat
32 Devices connected

Upgraded, no reset needed, no issues.
DoesItMatter
DD-WRT Guru


Joined: 10 May 2008
Posts: 1380
Location: Pacific North West, USA

PostPosted: Thu Apr 16, 2020 18:21    Post subject: Reply with quote
Router/Version: TP-Link Archer C7 V3
Firmware: DD-WRT v3.0-r42910 std (04/15/20)
Kernel: Linux 3.18.140-d4 #75943 Wed Apr 15 10:31:52 +04 2020 mips
Previous: r42819
Mode/Status: Gateway / Working
Reset: no
Issues/Errors: Working as a Gateway - Basic setup.

Haven't posted in a while but new builds seem to be great for my routers.

_________________
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Netgear Nighthawk R7000 - DD-WRT Build R46220
Linksys EA8500 - OpenWRT IPQ806x Trunk R16375 5.4 Kernel

TP-Link Archer C7 V3 - OpenWRT Build R16290 5.4 Kernel
Linksys E3000 - FreshTomato Build MIPSR2 2021.2
vgsenthil
DD-WRT Novice


Joined: 11 Apr 2011
Posts: 8

PostPosted: Thu Apr 16, 2020 19:40    Post subject: Reply with quote
Updated via Web GUI, no reset, ended up in a reboot loop

Netgear R7800
DD-WRT 04/15/2020 - r42910
QoS using HTB, Cake
Upgraded from: DD-WRT r42617
Issues/Errors: Device is in reboot loop

I was playing around with the WAN Up/Down speeds in QoS Setting. I entered 0 and 0. My router got into a reboot loop Sad Will try to hard reset to recover


Last edited by vgsenthil on Thu Apr 16, 2020 23:56; edited 3 times in total
MLandi
DD-WRT User


Joined: 04 Dec 2007
Posts: 477

PostPosted: Thu Apr 16, 2020 21:28    Post subject: Reply with quote
SSH update, no issues, clean reboot, no reset. All looks good.
_________________
Netgear R9000 X10
DD-WRT v3.0-r47479 std (09/23/21)
Gateway, AP, DNSMasq, SFE, Clock 2000MHz
IPv4 & IPv6 (Prefix Delegation)
Static Leases & DHCP
CloudFlare, QoS Disabled
Vanilla, WiFi & Ethernet
2.4GHz: NG-Mixed, 10 + 6 (2457 MHz HT40), ACK Timing 3150, WPA2 w/AES
5GHz: AC/N Mixed, 100 + 114 (5500 MHz VHT160), ACK Timing 3160, WPA2 w/AES
Xfinity 1.2Gbps/42Mbps
Laithan
DD-WRT User


Joined: 01 Sep 2018
Posts: 71

PostPosted: Fri Apr 17, 2020 0:52    Post subject: Reply with quote
Router/Version: R9000
Firmware: DD-WRT v3.0-r42910 std (04/15/20)
Kernel: Linux 4.9.219 #444 SMP Tue Apr 14 00:02:38 +03 2020 armv7l
Previous: r42803
Mode/Status: Router / AP
Reset: no
Issues/Errors: None
Uptime 22 hours
mitchd123
DD-WRT Novice


Joined: 20 Jun 2010
Posts: 21

PostPosted: Fri Apr 17, 2020 2:28    Post subject: Reply with quote
Router/Version: Linksys EA8500
Firmware: DD-WRT v3.0-r42910 std (04/15/20)
Kernel: Linux 4.9.219 #539 SMP Tue Apr 14 00:38:01 +03 2020 armv7l
Previous: r42847
Mode/Status: Gateway / Working
Reset: no
Issues/Errors:

Simple upgraded via CLI, no hang during reboot.

Experiencing Issue 1 mentioned at the top of this post, unable to get Samba/NAS working.

Set SMB min to 2.02
Set SMB Max to 3.11
Encryption to Off

On my Linux Mint I'm running Samba version 4.3.22-Ubuntu which should support SMB3

When I try to connect from Linux I get:
mount error(22): Invalid argument

The command I'm using:
(mount -t cifs //192.168.1.1/usb /mnt/usb -o user=myuser )
It correctly prompts me for a password then throws mount error 22. This command works fine on other servers. I've double-checked the password is correct.

When I try to connect from W10 (net use * \\192.168.1.1\usb ) I get:
System error 58 has occurred.

To troubleshoot the issue I removed the 8TB NTFS drive from the and replaced it with a 2GB EXT4 USB Key Reloaded the new directory, save/apply, no change, unable to NAS.
drumbo1
DD-WRT Novice


Joined: 10 Jun 2014
Posts: 7

PostPosted: Fri Apr 17, 2020 11:23    Post subject: Reply with quote
Router Model: TP-Link TL-WR841ND v11

Config/Mode: Router / AP

Firmware Version: DD-WRT v3.0-r42910 std (04/15/20)

Upgraded from: DD-WRT v3.0-r42847 std (04/06/20)

Reset: No

Issues/Errors: Wireless TX Power is limited to 16dBm. Back to r42847 and

TX Power is OK - 21dBm. (No change in Regulatory Domain)
kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 10154
Location: Texas, USA

PostPosted: Fri Apr 17, 2020 11:55    Post subject: Reply with quote
Router/Version: Netgear R7800
Firmware: DD-WRT v3.0-r42910 std (04/15/20)
Kernel: Linux 4.9.219 #539 SMP Tue Apr 14 00:38:01 +03 2020 armv7l
Previous: DD-WRT v3.0-r42819 std (03/30/20)
Reset: No
Mode: Cool
Status: OK
Uptime: ~16 hours
Errors: Cool

_________________
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johnnyNobody999
DD-WRT User


Joined: 10 Jan 2014
Posts: 443

PostPosted: Fri Apr 17, 2020 18:05    Post subject: Reply with quote
johnnyNobody999 wrote:
Router/Version: Netgear R7800 (5 of them)
Config/Mode: WDS - 4 stations
Status/Errors: None noted
File/Kernel: dd-wrt-webupgrade-netgear_r7800-r42910.bin/4.9.219
Previous/Reset: No reset.


UPDATE: I've been having random reboots. Logging has no helpful info. Running online games like Fortnite when using wireguard on Win10 can't connect to the game server even though lag is less than 10 ms and speed tests show 300 Mb up and down. Fortnite works after turning off wireguard.
mitchd123
DD-WRT Novice


Joined: 20 Jun 2010
Posts: 21

PostPosted: Sat Apr 18, 2020 0:33    Post subject: Reply with quote
If you're struggling with NAS read on

Above I had posted about challenges with NAS and USB Drive attached to the router with r42910. Despite some notes saying r42681 works with NAS, I had to backlevel to r41813 std (12/29/19) in order to get NAS working.

Linksys EA8500 with 8TB NTFS USB3 drive attached. Works fine on 41813, but not on 42910. I did significant experimentation with various SMB versions, and 42681 will connect to Mint Samba version 2:4.3.11+dfsg-0ubuntu0.16.04.25. However version 42681 does not seem to work with W10 v1909 build 18362.720. With W10 I get "System error 58 has occurred." I hope this helps others who are struggling with NAS.
husky55
DD-WRT User


Joined: 19 Nov 2008
Posts: 269
Location: Madison, CT, US

PostPosted: Sat Apr 18, 2020 13:58    Post subject: Reply with quote
Mitch, r42910 works with nas but with some changes. For win10 ver 1909 and ver2020 (beta), I had to change from server name to ip address for nas to work. For android 10, I also had to change to smb1 instead of auto or smb2 for nas to show up. I also use wds so results might be different for you.
_________________
Netgear R7800(2) WDS, Asus RT-AC68R (2)
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