On 07/16/2011 01:43 AM, Yasha Karant wrote:
I need to see ifconfig output for eth1 and eth0, both presumably
physical actual NIC LAN interfaces. I suspect that eth0.5 shares a
IEEE 802 MAC address with one of these physical actual NICs. If that
is the case, and the network on my campus detects one MAC with two IP
addresses, it would disable my connection (netstat -r would never get
a response from the gateway).
Yasha
Hi Yasha,
Here is a redacted "ifconfig -a" printout of the actual production
server with the Terminal Server on eth0.5 (vlan). eth0 is the internal
network (Samba etc.); eth1 is the external, Ethernet (firewall, etc.)
facing network.
OS= CentOS 5.6, x64
eth0 and eth0.5 are using the same 'HWaddr"
HTH,
-T
$ ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:yy:90:11:xx:58
inet addr:192.168.255.10 Bcast:192.168.255.255
Mask:255.255.255.0
inet6 addr: fe80::225:90ff:fe11:2658/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1158619 errors:0 dropped:0 overruns:0 frame:0
TX packets:1722958 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:210694527 (200.9 MiB) TX bytes:543269241 (518.1 MiB)
Interrupt:177 Memory:fbce0000-fbd00000
eth0.5 Link encap:Ethernet HWaddr 00:yy:90:11:xx:58
inet addr:192.168.254.10 Bcast:192.168.254.255
Mask:255.255.255.0
inet6 addr: fe80::225:90ff:fe11:2658/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:512578 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:43628240 (41.6 MiB)
eth1 Link encap:Ethernet HWaddr 00:yy:90:11:xx:59
inet addr:67.xxx.yyy.zzz Bcast:67.xxx.yyy.qqq
Mask:255.255.255.252
inet6 addr: xxxxxxxxxxxxxxxxxxxxxxxxx Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:87614 errors:0 dropped:0 overruns:0 frame:0
TX packets:71550 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:101234059 (96.5 MiB) TX bytes:12324311 (11.7 MiB)
Interrupt:169 Memory:fbde0000-fbe00000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:48511 errors:0 dropped:0 overruns:0 frame:0
TX packets:48511 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:61749859 (58.8 MiB) TX bytes:61749859 (58.8 MiB)
