[lug] attbi: misconfigured BROADCAST addr, etc?

[Neal McBurnett]

Thanks for verifying what I saw for port 25.  I do understand why
they did that.

Any help on the issue that is blocking my access though?  I still am
having no luck pinging IP addrs, including my own gateway.  The only
connectivity I see is tcpdump.  Details below.

What broadcast addrs are people seeing?  Am I doing something
stupid with my ifconfig line?

Thanks,

Neal McBurnett <neal at bcn.boulder.co.us>
http://bcn.boulder.co.us/~neal/
GPG/PGP signed and/or sealed mail encouraged.  Keyid: 2C9EBA60

On Fri, Dec 07, 2001 at 07:24:34PM -0700, Neal McBurnett wrote:
> On my AT&T broadband connection, I've seen dhcpcd returning results
> since Tue evening, but they seem bogus to me and things aren't working
> for me (linux redhat 7.1).
> 
> But I can use tcpdump to watch lots of arp activity, etc., on
> the network, so I'm clearly connected.
> 
> In particular, the BROADCAST addr seems bogus, I would think, given
> that netmask (and the clients I see arp requests for), that it should
> be 12.253.87.255
> 
>  [root at localhost hollylew]# cat /etc/dhcpc/dhcpcd-eth0.info 
>  IPADDR=12.253.87.170
>  NETMASK=255.255.252.0
>  NETWORK=12.253.84.0
>  BROADCAST=255.255.255.255		????????????
>  GATEWAY=12.253.84.1
>  HOSTNAME=c1120488-a
>  DOMAIN=attbi.com
>  DNS=216.148.227.68,204.127.202.4,12.242.19.50,12.242.19.34
>  DHCPSID=12.242.19.34
>  DHCPGIADDR=10.80.74.1
>  DHCPSIADDR=0.0.0.0
>  DHCPCHADDR=00:E0:98:08:F8:CB
>  DHCPSHADDR=00:30:7B:FF:28:70
>  DHCPSNAME=
>  LEASETIME=345600
>  RENEWALTIME=172800
>  REBINDTIME=302400
> 
> The 4-day lease is better than I've heard elsewhere, but worse
> than @home.
> 
> I've tried this with no luck:
>  ifconfig eth0:0 12.253.85.170 broadcast 12.253.87.255 netmask 255.255.252.0
> 
> I've disabled ipchains for this testing.
> 
> I'm near 40th and Baseline in Boulder (if there were a 40th....)
> 
> Any advice?
> 
> 
> As a separate matter, I now can't reach mail.attbi.com from the
> dial-up line I'm using in the interrim.  It was working earlier in the
> week:
> 
>  $ telnet mail.attbi.com smtp
>  Trying 216.148.227.71...
> 
> Just hangs for a while....
> 
> Do they now firewall out the rest of the world?
> 
> 
> Neal McBurnett <neal at bcn.boulder.co.us>
> http://bcn.boulder.co.us/~neal/
> GPG/PGP signed and/or sealed mail encouraged.  Keyid: 2C9EBA60
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