After I have installed a TP-Link Archer C7 as WDS-Client with a TP -Link TL-WR1043ND as Master-AP, the TL-WR1043ND should be exchanged by a Netgear Nighthawk X4S R7800.
Does the R7800 need a tftp-server on the pc? Or contains the R7800 a server itself? When I read https://openwrt.org/toh/netgear/r7800 it looks like the R7800 works as a client and as a server.
What do you recommend? I use an Ubuntu 18.04 netbook for flashing.
I think to configure the R7800 as WDS-master should be very easy.
In the Netgear recovery mode the router becomes a TFTP server at 192.168.1.1. You would use a TFTP client to send firmware to it. Your PC must be configured with a static IP in the 192.168.1.X range. Ubuntu comes with a CLI tftp client called tftp.
A few seconds, yes - in case of problems, put a simple unmanaged switch between your computer and the router (to avoid the link-down event and new link training).
I use tftp-hpa because tftpd-hpa worked for me out-of-the-box with Ubuntu 18.04. I needed the server to flash the Archer C7, in this case a client is needed only.
So it depends on the tftp-server if -b can be used. Prepared for this, since you are in a hurry executing the command after relesasing the needle. But I hat time enough after I entered the command with -b first.
I renamed the download to firmware.img
$ tftp 192.168.1.1
tftp> bin
tftp> put firmware.img
tftp> quit
Model
Netgear Nighthawk X4S R7800
Architecture
ARMv7 Processor rev 0 (v7l)
Firmware Version
OpenWrt 18.06.1 r7258-5eb055306f / LuCI openwrt-18.06 branch (git-18.228.31946-f64b152)
Kernel Version
4.14.63
root@R7800:~# iw list
Wiphy phy1
max # scan SSIDs: 16
max scan IEs length: 209 bytes
max # sched scan SSIDs: 0
max # match sets: 0
max # scan plans: 1
max scan plan interval: -1
max scan plan iterations: 0
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Device supports AP-side u-APSD.
Available Antennas: TX 0xf RX 0xf
Configured Antennas: TX 0xf RX 0xf
Supported interface modes:
* managed
* AP
* AP/VLAN
* monitor
* mesh point
Band 1:
Capabilities: 0x19ef
RX LDPC
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 8 usec (0x06)
HT TX/RX MCS rate indexes supported: 0-31
Frequencies:
* 2412 MHz [1] (30.0 dBm)
* 2417 MHz [2] (30.0 dBm)
* 2422 MHz [3] (30.0 dBm)
* 2427 MHz [4] (30.0 dBm)
* 2432 MHz [5] (30.0 dBm)
* 2437 MHz [6] (30.0 dBm)
* 2442 MHz [7] (30.0 dBm)
* 2447 MHz [8] (30.0 dBm)
* 2452 MHz [9] (30.0 dBm)
* 2457 MHz [10] (30.0 dBm)
* 2462 MHz [11] (30.0 dBm)
* 2467 MHz [12] (disabled)
* 2472 MHz [13] (disabled)
* 2484 MHz [14] (disabled)
valid interface combinations:
* #{ managed } <= 1, #{ AP, mesh point } <= 16,
total <= 16, #channels <= 1, STA/AP BI must match, radar detect widths: { 20 MHz (no HT), 20 MHz, 40 MHz, 80 MHz }
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
Device supports VHT-IBSS.
Wiphy phy0
max # scan SSIDs: 16
max scan IEs length: 199 bytes
max # sched scan SSIDs: 0
max # match sets: 0
max # scan plans: 1
max scan plan interval: -1
max scan plan iterations: 0
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Device supports AP-side u-APSD.
Available Antennas: TX 0xf RX 0xf
Configured Antennas: TX 0xf RX 0xf
Supported interface modes:
* managed
* AP
* AP/VLAN
* monitor
* mesh point
Band 2:
Capabilities: 0x19ef
RX LDPC
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 8 usec (0x06)
HT TX/RX MCS rate indexes supported: 0-31
VHT Capabilities (0x339b79fa):
Max MPDU length: 11454
Supported Channel Width: 160 MHz, 80+80 MHz
RX LDPC
short GI (80 MHz)
short GI (160/80+80 MHz)
TX STBC
SU Beamformer
SU Beamformee
MU Beamformer
MU Beamformee
RX antenna pattern consistency
TX antenna pattern consistency
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: MCS 0-9
4 streams: MCS 0-9
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT RX highest supported: 1560 Mbps
VHT TX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: MCS 0-9
4 streams: MCS 0-9
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT TX highest supported: 1560 Mbps
Frequencies:
* 5180 MHz [36] (23.0 dBm)
* 5200 MHz [40] (23.0 dBm)
* 5220 MHz [44] (23.0 dBm)
* 5240 MHz [48] (23.0 dBm)
* 5260 MHz [52] (23.0 dBm) (radar detection)
* 5280 MHz [56] (23.0 dBm) (radar detection)
* 5300 MHz [60] (23.0 dBm) (radar detection)
* 5320 MHz [64] (23.0 dBm) (radar detection)
* 5500 MHz [100] (23.0 dBm) (radar detection)
* 5520 MHz [104] (23.0 dBm) (radar detection)
* 5540 MHz [108] (23.0 dBm) (radar detection)
* 5560 MHz [112] (23.0 dBm) (radar detection)
* 5580 MHz [116] (23.0 dBm) (radar detection)
* 5600 MHz [120] (23.0 dBm) (radar detection)
* 5620 MHz [124] (23.0 dBm) (radar detection)
* 5640 MHz [128] (23.0 dBm) (radar detection)
* 5660 MHz [132] (23.0 dBm) (radar detection)
* 5680 MHz [136] (23.0 dBm) (radar detection)
* 5700 MHz [140] (23.0 dBm) (radar detection)
* 5720 MHz [144] (23.0 dBm) (radar detection)
* 5745 MHz [149] (30.0 dBm)
* 5765 MHz [153] (30.0 dBm)
* 5785 MHz [157] (30.0 dBm)
* 5805 MHz [161] (30.0 dBm)
* 5825 MHz [165] (30.0 dBm)
* 5845 MHz [169] (disabled)
valid interface combinations:
* #{ managed } <= 1, #{ AP, mesh point } <= 16,
total <= 16, #channels <= 1, STA/AP BI must match, radar detect widths: { 20 MHz (no HT), 20 MHz, 40 MHz, 80 MHz }
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
Device supports VHT-IBSS.