[plug] Argh! What have I _done_ ?!

[Brinley Ang]

Hello bob,

did u printf your routing table correctly?
u have 0.0.0.0 for gateway
at infs that dont require a gateway
an inf not needing a gateway should be just "*"


bob wrote:

>A continuing saga of configuring an Alpha for use as a server/gateway.
>After much angst Bob thinks that the box is ready for service so puts it
>live online. 
>
>Now read on...
>
>Ok, so the network that was working ok is now broken to the point where
>I can't ping any of the hosts on the lan. If I down the eth0 i/f on the
>server I can see other hosts, however it is unlikely to be a hardware
>problem as I've replaced the nic with a known good with no change in
>brokenness. Whenever packets are poked at the server all the active
>lights flash on the switch (not the case when pinging between hosts )
>Its obviously in the config somewhere... but all I did was change the
>gateway to point to the new IP# on the lan hosts and delete the default
>route to the old gateway on the new one _honest!_ .
>
>I hope someone can point out my stupidity because I'm out of ideas and
>about ready to throw it out the window :(. 
>
>I'm not even sure what would be usefull to send at the moment because
>everything looks ok AFAIK. but here is a a brief rundown of the old vs
>new setups
>
>OLD GW box 192.168.0.1 192.168.0.0/24 network
>NEW GW box 192.168.0.50 "" "" 
>
>default route was ...1 now ...50 on lan hosts
>default route on GWbox points to fixed IP ppp (same deal as old box) 
>
>ppp works ok (I'm composing this on the GWbox) 
>
>ifconfig on the GWbox shows
>
>eth0      Link encap:Ethernet  HWaddr 00:A0:C9:E1:84:45  
>          inet addr:192.168.0.50  Bcast:192.168.0.255 
>Mask:255.255.255.0          UP BROADCAST RUNNING MULTICAST  MTU:1500 
>Metric:1          RX packets:3493 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:3326 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:100 
>          RX bytes:254338 (248.3 KiB)  TX bytes:172339 (168.2 KiB)
>          Interrupt:16 Base address:0x8000 
>
>
>ifconfig on the lan hosts shows (typ)
>
>eth0      Link encap:Ethernet  HWaddr 00:A0:C9:A5:F3:A1  
>          inet addr:192.168.0.111  Bcast:192.168.0.255 
>Mask:255.255.255.0          UP BROADCAST RUNNING MULTICAST  MTU:1500 
>Metric:1          RX packets:377 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:4045 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:100 
>          RX bytes:47192 (46.0 Kb)  TX bytes:203806 (199.0 Kb)
>          Interrupt:11 Base address:0xe000 
>
>
>Kernel IP routing table on the GWbox shows
>
>Destination     Gateway         Genmask         Flags Metric Ref    Use
>Iface X.X.X.X    0.0.0.0         255.255.255.255 UH    0      0        0
>ppp0 
>
>192.168.0.0     0.0.0.0         255.255.255.0   U     0      0     
>  0 eth0 
>
>0.0.0.0         X.X.X.X    0.0.0.0         UG    0      0      
> 0 ppp0
>
>Kernel IP routing table on the lan hosts shows
>
>Destination     Gateway         Genmask         Flags Metric Ref    Use
>Iface 
>
>192.168.0.0     0.0.0.0         255.255.255.0   U     0      00 eth0 
>
>127.0.0.0       0.0.0.0         255.0.0.0       U     0      0
>       0 lo 
>
>0.0.0.0         192.168.0.50    0.0.0.0         UG    0     
>0        0 eth0
>
>
>I hope I can get some hints as to how I've borked this one up. 
>I had hoped it would be a painless changeover :(. 
>
>Please let me know if you need more info, I'm more than happy to run
>whatever  to get this fixed.
>
>Thanks.
>