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fukawi2

N40L VLAN Leakage

Jul 22nd, 2013
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  1. === First, DHCPDISCOVER appears in both VLAN's (the untagged 1 and tagged 10)
  2. Jul 23 06:51:50 gateway dhcpd: DHCPDISCOVER from 90:84:0d:9c:13:df via eth0.10
  3. Jul 23 06:51:50 gateway dhcpd: DHCPDISCOVER from 90:84:0d:9c:13:df via eth0: network 192.168.100.0/25: no free leases
  4.  
  5. === DHCPOFFER is sent back to VLAN10 only because VLAN1 has no free leases
  6. Jul 23 06:51:51 gateway dhcpd: DHCPOFFER on 192.168.100.207 to 90:84:0d:9c:13:df (iPhone) via eth0.10
  7.  
  8. === DHCPREQUEST for the same address appears in both VLAN's again:
  9. Jul 23 06:51:52 gateway dhcpd: DHCPREQUEST for 192.168.100.207 (192.168.100.200) from 90:84:0d:9c:13:df (iPhone) via eth0.10
  10. Jul 23 06:51:52 gateway dhcpd: DHCPACK on 192.168.100.207 to 90:84:0d:9c:13:df (iPhone) via eth0.10
  11. Jul 23 06:51:52 gateway dhcpd: DHCPREQUEST for 192.168.100.207 (192.168.100.200) from 90:84:0d:9c:13:df (iPhone) via eth0: wrong network.
  12. Jul 23 06:51:52 gateway dhcpd: DHCPNAK on 192.168.100.207 to 90:84:0d:9c:13:df via eth0
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