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Strange IPv4 Routing Issue on KVM Linux Node

Posts: 4
edited December 2016 in Red Hat Enterprise

I have primary /24 routed to a Centos 6 VPS node, KVM based system. I needed to add secondary /26 subnet specific to a VM for a client. I created the ifcfg-eth0-range0 file.


  1. [root@kvm1 network-scripts]# cat ifcfg-eth0-range1
  2. IPADDR_START=xxx.244.42.194
  3. IPADDR_END=xxx.244.42.254
  4. CLONENUM_START=0

Weird thing is, out of all 64 IPs, I can ping gateway fine and random IPs in between like 200, 196, etc but seems like the other half are getting "expired in transit" error oddly.

 


  1. [root@kvm1 network-scripts]# cat ifcfg-br0
  2. DEVICE=br0
  3. TYPE=Bridge
  4. BOOTPROTO=static
  5. IPADDR=xxx.xxx.200.2
  6. NETMASK=255.255.255.0
  7. GATEWAY=xxx.xxx.200.1
  8. ONBOOT=yes
  9. [root@kvm1 network-scripts]# cat ifcfg-br0
  10. DEVICE=br0
  11. TYPE=Bridge
  12. BOOTPROTO=static
  13. IPADDR=xxx.xxx.200.2
  14. NETMASK=255.255.255.0
  15. GATEWAY=xxx.xxx.200.1
  16. ONBOOT=yes
  17. [root@kvm1 network-scripts]# cat ifcfg-eth0
  18. DEVICE=eth0
  19. HWADDR=00:25:90:A1:76:06
  20. TYPE=Ethernet
  21. UUID=187bd7f3-7ee1-4706-9489-1097cee44b3a
  22. ONBOOT=yes
  23. NM_CONTROLLED=yes
  24. BOOTPROTO=static
  25. BRIDGE=br0
  26. [root@kvm1 network-scripts]# cat ifcfg-eth0-range0
  27. IPADDR_START=xxx.xxx.200.2
  28. IPADDR_END=xxx.xxx.200.128
  29. CLONENUM_START=0

Ran service network restart after and still can't ping all IPs, just random in between ones out of the /26.

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