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[9.000][ANSWERED] Bcase set to 0.0.0.0

Hi All,

I was playing around with 9.000 with static ip to brush up my understanding... but my ISP complained I was spamming their router [:S]

They say the issue is because I'm using the an incorrect broadcast address.
They asked for an ifconfig output which I provided.
eth1      Link encap:Ethernet  HWaddr 00:50:56:08:6B:A3  

          inet addr:91.121.217.18  Bcast:0.0.0.0  Mask:255.255.255.255
          inet6 addr: fe80::250:56ff:fe08:6ba3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:5680710 errors:0 dropped:34 overruns:0 frame:0
          TX packets:9385084 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1307332196 (1246.7 Mb)  TX bytes:12986148619 (12384.5 Mb)

eth2      Link encap:Ethernet  HWaddr 00:50:56:02:27:F3  
          inet addr:188.165.142.66  Bcast:0.0.0.0  Mask:255.255.255.255
          inet6 addr: fe80::250:56ff:fe02:27f3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:191591767 errors:0 dropped:30 overruns:0 frame:0
          TX packets:346758421 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:38529792169 (36744.8 Mb)  TX bytes:466337010392 (444733.6 Mb)


They came back to me saying the following:
91.121.217.18  Bcast:0.0.0.0  Mask:255.255.255.255 - the broadcast should be 91.121.217.18 not 0.0.0
188.165.142.66  Bcast:0.0.0.0  Mask:255.255.255.255 the broadcast should be  188.165.142.66 not 0.0.0


I have no idea what I configured wrong and how to fix this.

Some more information:
- I'm using uplink balancing
- interfaces configured like this:



Any ideas?
Parents
  • I still think changing the netmask to /24 or /23 should work.

    Barry
  • Barry, not using the correct subnet can cause routing issues if he tries to access another host that is "close" in IP address to his, if the incorrect mask makes it part of his external network (rare, truthfully)... chased a problem like that down at once customer site where their IT guy configured a /24 mask on the external side of their T1 router when it should have been a /29 ... there so happened to be a client of theirs using the same ISP across town, and they could not email them... tracert showed the packets got "lost" due to routing incongruities.

    If the OP found that /30 should be what his mask is, that's what he should use.

    CTO, Convergent Information Security Solutions, LLC

    https://www.convergesecurity.com

    Advice given as posted on this forum does not construe a support relationship or other relationship with Convergent Information Security Solutions, LLC or its subsidiaries.  Use the advice given at your own risk.

Reply
  • Barry, not using the correct subnet can cause routing issues if he tries to access another host that is "close" in IP address to his, if the incorrect mask makes it part of his external network (rare, truthfully)... chased a problem like that down at once customer site where their IT guy configured a /24 mask on the external side of their T1 router when it should have been a /29 ... there so happened to be a client of theirs using the same ISP across town, and they could not email them... tracert showed the packets got "lost" due to routing incongruities.

    If the OP found that /30 should be what his mask is, that's what he should use.

    CTO, Convergent Information Security Solutions, LLC

    https://www.convergesecurity.com

    Advice given as posted on this forum does not construe a support relationship or other relationship with Convergent Information Security Solutions, LLC or its subsidiaries.  Use the advice given at your own risk.

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