Hi,
On 02/20/2010 08:44 PM, Dennis Bartsch wrote:
> can anyone comfirm that on the TP-Link TL-WR741ND broadcasts are not
> received on LAN ports? I got aware of it when I had not gotten an IP
> adress through DHCP. Then I generated other broadcast. But a quick sniff
> with tcpdump didn't show these broacasts. Unloading firewall didn't
> help. Under these circumstances it is clear that DHCP could not work.
>
> At the moment rev 19598 is flashed.
I couldn't find any code in svn r19920 dealing specifically with the AR7240 and
the built-in switch.
So I guess that the bootloader settings of the switch stay valid. In the u-boot
sources from the
TP-Link tar ball you find in board/ar7240/common/ar7240_s26_phy.c, line 345:
/* Enable ARP packets to CPU port */
athrs26_reg_write(S26_ARL_TBL_CTRL_REG,(athrs26_reg_read(S26_ARL_TBL_CTRL_REG)
| 0x100000));
Maybe other broadcast packets need to be enabled here, too?
Could you check if anything in syslog claims to handle ar/ag7240 or s26 during
boot of the OpenWRT trunk?
(I haven't put it onto my device, as I want to look at the original firmware
first).
Do broadcast ARP requests reach the CPU?
Ticket for this problem: https://dev.openwrt.org/ticket/6660
Regards,
Joerg.
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