https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194857
Bug ID: 194857
Summary: Ping fails after changing the MAC address of the
interface
Product: Base System
Version: 10.0-RELEASE
Hardware: amd64
OS: Any
Status: Needs Triage
Severity: Affects Many People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Test machine 1: ( sender )
OS: FreeBSD 10.0
We are using below Emulex skyhawk adapter.
oce0@pci0:4:0:0: class=0x020000 card=0xe80110df chip=0x072010df rev=0x10
hdr=0x00
vendor = 'Emulex Corporation'
device = 'OneConnect NIC (Skyhawk)'
class = network
subclass = ethernet
bar [10] = type Prefetchable Memory, range 64, base 0xfb340000, size
16384, enabled
bar [18] = type Prefetchable Memory, range 64, base 0xfb320000, size
131072, enabled
bar [20] = type Prefetchable Memory, range 64, base 0xfb300000, size
131072, enabled
Test machine 2: ( receiver )
OS: FreeBSD 10.0
We are using below Emulex skyhawk adapter.
oce0@pci0:4:0:0: class=0x020000 card=0xe80110df chip=0x072010df rev=0x10
hdr=0x00
vendor = 'Emulex Corporation'
device = 'OneConnect NIC (Skyhawk)'
class = network
subclass = ethernet
bar [10] = type Prefetchable Memory, range 64, base 0xfb340000, size
16384, enabled
bar [18] = type Prefetchable Memory, range 64, base 0xfb320000, size
131072, enabled
bar [20] = type Prefetchable Memory, range 64, base 0xfb300000, size
131072, enabled
Steps to Reproduce:
1. Both the above cards are connected directly without switch.
2. Configure interfaces.
3. Issue ping on Machine 1 ( sender ). It is able to ping receiver.
4. While ping continues, on Machine 1 (sender), change MAC addr
Original MAC: 00:90:fa:6c:18:08
Changed MAC using "ifconfig oce0 ether ab:90:fa:6c:18:08"
Changed first two bits 00 => ab.
5. Ping stops working.
6. In tcpdump if we see, it still shows old mac address.
We are observing this behavior even with other adapters like Intel
igb0@pci0:2:0:0: class=0x020000 card=0x152115d9 chip=0x15218086 rev=0x01
hdr=0x00
vendor = 'Intel Corporation'
device = 'I350 Gigabit Network Connection'
class = network
subclass = ethernet
bar [10] = type Memory, range 32, base rxfbc20000, size 131072, enabled
bar [18] = type I/O Port, range 32, base rxe020, size 32, enabled
bar [1c] = type Memory, range 32, base rxfbc44000, size 16384, enabled
--
You are receiving this mail because:
You are the assignee for the bug.
_______________________________________________
[email protected] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-bugs
To unsubscribe, send any mail to "[email protected]"
