OpenWrt on Fritz 7430

Installing and Using OpenWrt
1

I am trying to switch a AVM fritzbox 7430 to use OpenWrt. Following https://openwrt.org/toh/avm/avm_fritz_box_7430 I succeeded in flashing the snapshot referenced on that page to the box, and I also succeeded with some basic local network/wireless/dhcp configuration. Btw. the 7430 images do not contain Luci and I haven´t installed it so far (also lacking internet access so far),

However I am unsure with firmware and DSL configuration (Germany, Telekom).

Newbie needs help with setting up DSL on a FRITZ!Box 7430 mentions extracting lantiq firmware. This is not mentioned at all in https://openwrt.org/toh/avm/avm_fritz_box_7430, thus I am wondering whether this is still required or recommended.
Output of "/etc/init.d/dsl_control dslstat" on my installation yields "firmware_version": "5.7.9.9.0.6", which is older than the "5.9.0.13.0.2" shown at Newbie needs help with setting up DSL on a FRITZ!Box 7430 - #12 by ThxnderBvnny. I also looked at https://xdarklight.github.io/lantiq-xdsl-firmware-info/ which has 5.9.1.4.0.7-5.9.0.D.0.1 corresponding to Fritz-OS 7.29. Is that the recommended version or should I download version 7.30 (the last OS from AVM) and extract from that?

w.r.t. DSL configuration Newbie needs help with setting up DSL on a FRITZ!Box 7430 - #5 by ThxnderBvnny shows options ds_snr_offset, annex, and xfer_mode different than https://openwrt.org/docs/guide-user/network/wan/isp-configurations#germany.

config dsl 'dsl'
	option ds_snr_offset '0'
	option annex 'j'
	option tone 'bv'
	option xfer_mode 'ptm'

config interface 'wan'
        option device 'dsl0'
        option proto 'pppoe'
        option username '55**-0001@t-online.de'
        option password '**'
        option ipv6 '1'
        option ifname 'dsl0.7'

Are these correct or what should I change and to what values? The firmware referenced definitely above does not exist in my installation
(yet), see above. Actually I tried several variants in dsl, but all of them result in similar output of /etc/init.d/dsl_control dslstat:

        "api_version": "4.17.18.6",
        "firmware_version": "5.7.9.9.0.6",
        "chipset": "Lantiq-VRX200",
        "driver_version": "1.5.17.6",
        "state": "Showtime with TC-Layer sync",
        "state_num": 7,
        "up": true,
        "uptime": 29,
...
        "power_state": "L0 - Synchronized",
        "power_state_num": 0,
        "xtse": [
                0,
                0,
                0,
                0,
                0,
                0,
                0,
                2
        ],
        "annex": "B",
        "standard": "G.993.2",
        "profile": "17a",
        "mode": "G.993.2 (VDSL2, Profile 17a)",
        "upstream": {
                "vector": false,
                "trellis": true,
                "bitswap": false,
                "retx": true,
                "virtual_noise": false,
                "ra_mode": "At initialization",
                "ra_mode_num": 1,
                "interleave_delay": 0,
                "inp": 42.000000,
                "data_rate": 1608000,
                "latn": 0.700000,
                "satn": 0.700000,
                "snr": 10.700000,
                "actatp": 5.000000,
                "attndr": 1608000,
                "mineftr": 1606000
        },
        "downstream": {
                "vector": false,
                "trellis": true,
                "bitswap": false,
                "retx": true,
                "virtual_noise": false,
                "ra_mode": "At initialization",
                "ra_mode_num": 1,
                "interleave_delay": 580,
                "inp": 62.000000,
                "data_rate": 24002000,
                "latn": 2.700000,
                "satn": 2.700000,
                "snr": 6.000000,
                "actatp": 13.700000,
                "attndr": 24028564,
                "mineftr": 24002000
        },
...

(truncated in preview?)

Right now I don´t know what issue to tackle first.
Please advise.

2

Most practical is to extract dsl file from your own oem fw. Current status says no vectoring.

3

SCP it over to the router from your client.

https://firmware-selector.openwrt.org/?version=24.10.0&target=lantiq%2Fxrx200&id=avm_fritz7430

1 Like
4

afaik the 7430 does not support vectoring, and Telekom says it is not active.

Update: nevertheless I extracted the AVM version from OS 7.31. However I am confused by the instructions bspatch vr9-B-dsl.bin vr9-A-dsl.bin vr9-A-dsl.bin.bsdiff, that create - I suppose - an Annex A version. Should I use Annex A or the existing B version?

Thanks for the link with customization options. I do have a webserver around that I used to transfer the sysupgrade image.

1 Like
5

One or the other (device, not ifname, the later is deprecated), and they mustn't disagree either (so option device 'dsl0.7', no ifname line).

The f!b7430 is a plain xrx200 device, -with the right firmware- it can do vectoring (profile 17b, 100/40 MBit/s), but not super-vectoring (profile 35b, 250/40 MBit/s). Just be aware, its 4*100 MBit/s ethernet ports (and the 802.11n/ 2.4-GHz-only wireless) do limit its capabilities somewhat.

6

The Annex B version is correct, so you can skip the bspatch stuff.

7

I know, but I have a spare box around that I can use for experimenting.
Imho AVM has serious quality/reliability issues. I observe both 7430 and 7530 with stock firmware crashing regularly. I could buy some other router, but why new hardware when I can reuse existing hardware with better software. The 7430 matches my girl friend´s needs except for the missing DECT phone.

Thanks for all the feedback. With the changes recommended (including oem firmware), the 7430 connected today. I also used the customization tool to create new firmware including lucy and wireguard.
More tests to come probably next week.