Thanks for the pointer. Well, this patch does allow me to get the
BROADCAST flag and address set. Except this still doesn't allow
me to receive the broadcasts -- like you said. Or, at least I dhcpd
doesn't work. I probably need to cook up a simpler test program
than dhcpd.
Btw, in mkiss.c, I think these two constants are wrong.
static char ax25_bcast[AX25_ADDR_LEN] =
{'Q'<<1,'S'<<1,'T'<<1,' '<<1,' '<<1,' '<<1,'0'<<1};
static char ax25_test[AX25_ADDR_LEN] =
{'L'<<1,'I'<<1,'N'<<1,'U'<<1,'X'<<1,' '<<1,'1'<<1};
I think they should be 0 instead of '0', if ax25_addr is the
final source on what is the correct format -- right? But, then
how did Arp ever work? This is right, I think...
static char ax25_bcast[AX25_ADDR_LEN] =
{'Q'<<1,'S'<<1,'T'<<1,' '<<1,' '<<1,' '<<1,0<<1};
static char ax25_test[AX25_ADDR_LEN] =
{'L'<<1,'I'<<1,'N'<<1,'U'<<1,'X'<<1,' '<<1,1<<1};
I was all fired up, about maybe this being the problem, but
then still dhcpd doesn't work. Though I now have some other
things to try again.
Maybe it would be better to call asc2ax here -- hmm?
>>
>> I'm also still trying to figure out the BROADCAST flag, and whether
>> this is necessary. My ethernet card shows a Bcast:XX.XX.XX.XX
>> address and the BROADCAST flag in ifconfig, but none of my ax25
>> ports do. Why doesn't /sbin/ifconfig ax2 broadcast turn this on?
>
>Broadcast operation seems to be broken, at least on those ax25 ports
>supported via KISS. I ran into this problem some time back when trying
>to get gated to work over the air. It is likely that the same problem is
>keeping dhcp from working.
>
>Part of the problem is that the mkiss code is not setting the flag that tells
>the rest of the system that it is capable of doing broadcasts. This all used
>to work, but seems to have been broken sometime around the 2.2 kernel
>release. From what I can tell, the networking code used to assume that
>broadcast was supported, despite the flag not being set.
>
>The following code change will set the broadcast flag and allow ifconfig
>to set the broadcast address.
>
>WARNING, while this won't break anything, I can't be sure it will fix the
>dhcp problem either. It partially fixed my problems with gated, but I still
>have problems receiving broadcasts, thus it's probably only part of the
>problem. Offered in the hope it will fix your problem or at least point you
>in the direction of a fix. My time has been limited lately and I haven't been
>able to take this any farther.
>
>--
>Make the following mod to the file /usr/src/linux/drivers/net/hamradio/mkiss.c
>and recompile the kernal and modules.
>
>At line 1031 change the entry for
> dev->flags = 0;
>to
> dev->flags = 0x2;
>
>ifconfig will now show the BROADCAST field and allow you to modify it.
>Programs that check for broadcast capability (like gated and dhcpd) should
>now attempt to use ax25 ports as well.
>
>
>--
>Let me know if this helps.
>
>Ken, N7IPB
>[EMAIL PROTECTED] - TCP/IP packet radio in the Pacific Northwest
