Vlan interface on bond sending traffic using a MAC different the one in configuration
Zhuangyuxin <[email protected]> Wed, 19 Jul 2017 09:56:50 +0000
| Newsgroups | gmane.linux.redhat.devel |
|---|---|
| Message-ID | <9C2DE4B8FE85984BA1B0581235F6B2ED50A0F393@DGGEML503-MBX.china.huawei.com> |
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<p class=3D"MsoNormal">HI, <o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-indent:21.0pt">We are trying to create=
multiple vlan interfaces on a bond0(taking eth0 as slave), our progr=
am<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-indent:21.0pt">has configured differen=
t mac on those vlan interfaces, but when we do packet capture, we found the=
vlan
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-indent:21.0pt">interface is using the =
same mac as bond0, different from the MAC configured on it.
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-indent:21.0pt"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"text-indent:21.0pt">Is this a bug or expect=
ed? Is there a workaround to use the MAC we have set? Thank you!<o:p></o:p>=
</p>
<p class=3D"MsoNormal">Best,<o:p></o:p></p>
<p class=3D"MsoNormal">Yuxin<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">------------------------------<o:p></o:p></p>
<p class=3D"MsoNormal">We are using redhat 7.3. <o:p></o:p></p>
<p class=3D"MsoNormal">Snippets below shows: vlan interface bond0.2929 on b=
ond0 which have eth0 as slave sending traffic using MAC addr of bond0.<o:p>=
</o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">[rhel@bms-redhat-lpf-20 network-scripts]$ uname -a<o=
:p></o:p></p>
<p class=3D"MsoNormal">Linux bms-redhat-lpf-20 3.10.0-514.el7.x86_64 #1 SMP=
Wed Oct 19 11:24:13 EDT 2016 x86_64 x86_64 x86_64 GNU/Linux<o:p></o:p></p>
<p class=3D"MsoNormal">[rhel@bms-redhat-lpf-20 network-scripts]$ cat /etc/o=
s-release
<o:p></o:p></p>
<p class=3D"MsoNormal">NAME=3D"Red Hat Enterprise Linux Server"<o=
:p></o:p></p>
<p class=3D"MsoNormal">VERSION=3D"7.3 (Maipo)"<o:p></o:p></p>
<p class=3D"MsoNormal">=A1=AD.<o:p></o:p></p>
<p class=3D"MsoNormal">[rhel@bms-redhat-lpf-20 network-scripts]$ ip addr<o:=
p></o:p></p>
<p class=3D"MsoNormal">1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc =
noqueue state UNKNOWN qlen 1<o:p></o:p></p>
<p class=3D"MsoNormal"> link/loopback 00:00:00:00:00:00 b=
rd 00:00:00:00:00:00<o:p></o:p></p>
<p class=3D"MsoNormal"> inet 127.0.0.1/8 scope host lo<o:=
p></o:p></p>
<p class=3D"MsoNormal"> valid_lft forev=
er preferred_lft forever<o:p></o:p></p>
<p class=3D"MsoNormal"> inet6 ::1/128 scope host <o:p></o=
:p></p>
<p class=3D"MsoNormal"> valid_lft =
forever preferred_lft forever<o:p></o:p></p>
<p class=3D"MsoNormal">2: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP&g=
t; mtu 8888 qdisc mq master bond0 state UP qlen 1000<o:p></o:p></p>
<p class=3D"MsoNormal"> link/ether fa:16:3e:a9:88:96 brd =
ff:ff:ff:ff:ff:ff<o:p></o:p></p>
<p class=3D"MsoNormal">3: enp2s0f1: <NO-CARRIER,BROADCAST,MULTICAST,UP&g=
t; mtu 1500 qdisc mq state DOWN qlen 1000<o:p></o:p></p>
<p class=3D"MsoNormal"> link/ether e8:4d:d0:c1:52:3a brd =
ff:ff:ff:ff:ff:ff<o:p></o:p></p>
<p class=3D"MsoNormal">4: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP=
> mtu 8888 qdisc noqueue state UP qlen 1000<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt">link/ether fa:16:3e:a9:8=
8:96 brd ff:ff:ff:ff:ff:ff<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt"> =
&nb=
sp; ^^^^^^^^^^^^^^^<o:p></o:p></p>
<p class=3D"MsoNormal"> inet 192.168.12.58/24 brd 192.168=
.12.255 scope global dynamic bond0<o:p></o:p></p>
<p class=3D"MsoNormal"> valid_lft 79139=
sec preferred_lft 79139sec<o:p></o:p></p>
<p class=3D"MsoNormal"> inet6 fe80::f816:3eff:fea9:8896/6=
4 scope link <o:p></o:p></p>
<p class=3D"MsoNormal"> valid_lft =
forever preferred_lft forever<o:p></o:p></p>
<p class=3D"MsoNormal">5: bond0.2929@bond0: <BROADCAST,MULTICAST,UP,LOWE=
R_UP> mtu 8888 qdisc noqueue state UP qlen 1000<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt">link/ether fa:16:3e:d3:2=
6:88 brd ff:ff:ff:ff:ff:ff<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt"> =
&nb=
sp; ^^^^^^^^^^^^^^^<o:p></o:p></p>
<p class=3D"MsoNormal"> inet 192.168.100.203/24 brd 192.1=
68.100.255 scope global dynamic bond0.2929<o:p></o:p></p>
<p class=3D"MsoNormal"> valid_lft 79185=
sec preferred_lft 79185sec<o:p></o:p></p>
<p class=3D"MsoNormal"> inet6 fe80::f816:3eff:fed3:2688/6=
4 scope link <o:p></o:p></p>
<p class=3D"MsoNormal"> valid_lft =
forever preferred_lft forever <o:p></o:p></p>
<p class=3D"MsoNormal">=A1=AD=A1=AD<o:p></o:p></p>
<p class=3D"MsoNormal">(ping 192.16.100.1 on another terminal)<o:p></o:p></=
p>
<p class=3D"MsoNormal">[rhel@bms-redhat-lpf-20 network-scripts]$ sudo tcpdu=
mp -nei bond0 icmp<o:p></o:p></p>
<p class=3D"MsoNormal">tcpdump: verbose output suppressed, use -v or -vv fo=
r full protocol decode<o:p></o:p></p>
<p class=3D"MsoNormal">listening on bond0, link-type EN10MB (Ethernet), cap=
ture size 65535 bytes<o:p></o:p></p>
<p class=3D"MsoNormal">05:20:06.748300 fa:16:3e:92:ee:69 > fa:16:3e:c6:0=
2:6a, ethertype 802.1Q (0x8100), length 102: vlan 3063, p 0, ethertype IPv4=
, 172.16.0.252 > 172.16.0.91: ICMP echo request, id 37110, seq 2038, len=
gth 64<o:p></o:p></p>
<p class=3D"MsoNormal">05:20:06.748311 fa:16:3e:a9:88:96 > fa:16:3e:a9:0=
2:37, ethertype 802.1Q (0x8100), length 102: vlan 3063, p 0, ethertype IPv4=
, 172.16.0.91 > 172.16.0.252: ICMP echo reply, id 37110, seq 2038, lengt=
h 64<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; &=
nbsp; ^^^^^^^^^^^^^^^<o:p><=
/o:p></p>
<p class=3D"MsoNormal">05:20:07.175174 fa:16:3e:a9:88:96 > fa:16:3e:91:5=
8:e5, ethertype IPv4 (0x0800), length 98: 192.168.12.58 > 192.16.100.1: =
ICMP echo request, id 12680, seq 29, length 64<o:p></o:p></p>
<p class=3D"MsoNormal">05:20:07.748326 fa:16:3e:92:ee:69 > fa:16:3e:c6:0=
2:6a, ethertype 802.1Q (0x8100), length 102: vlan 3063, p 0, ethertype IPv4=
, 172.16.0.252 > 172.16.0.91: ICMP echo request, id 37110, seq 2039, len=
gth 64<o:p></o:p></p>
<p class=3D"MsoNormal">=A1=AD=A1=AD<o:p></o:p></p>
<p class=3D"MsoNormal">[rhel@bms-redhat-lpf-20 network-scripts]$ cat ifcfg-=
bond0<o:p></o:p></p>
<p class=3D"MsoNormal">MACADDR=3Dfa:16:3e:a9:88:96<o:p></o:p></p>
<p class=3D"MsoNormal">USERCTL=3Dno<o:p></o:p></p>
<p class=3D"MsoNormal">BONDING_MASTER=3Dyes<o:p></o:p></p>
<p class=3D"MsoNormal">ONBOOT=3Dyes<o:p></o:p></p>
<p class=3D"MsoNormal">NM_CONTROLLED=3Dno<o:p></o:p></p>
<p class=3D"MsoNormal">BOOTPROTO=3Ddhcp<o:p></o:p></p>
<p class=3D"MsoNormal">BONDING_OPTS=3D"mode=3D4 xmit_hash_policy=3Dlay=
er3+4 miimon=3D100"<o:p></o:p></p>
<p class=3D"MsoNormal">DEVICE=3Dbond0<o:p></o:p></p>
<p class=3D"MsoNormal">TYPE=3DBond<o:p></o:p></p>
<p class=3D"MsoNormal">[rhel@bms-redhat-lpf-20 network-scripts]$ cat ifcfg-=
eth0 <o:p>
</o:p></p>
<p class=3D"MsoNormal">USERCTL=3Dno<o:p></o:p></p>
<p class=3D"MsoNormal">MTU=3D8888<o:p></o:p></p>
<p class=3D"MsoNormal">NM_CONTROLLED=3Dno<o:p></o:p></p>
<p class=3D"MsoNormal">BOOTPROTO=3Ddhcp<o:p></o:p></p>
<p class=3D"MsoNormal">DEVICE=3Deth0<o:p></o:p></p>
<p class=3D"MsoNormal">TYPE=3DEthernet<o:p></o:p></p>
<p class=3D"MsoNormal">ONBOOT=3Dyes<o:p></o:p></p>
<p class=3D"MsoNormal">MASTER=3Dbond0<o:p></o:p></p>
<p class=3D"MsoNormal">SLAVE=3Dyes<o:p></o:p></p>
<p class=3D"MsoNormal">[rhel@bms-redhat-lpf-20 network-scripts]$ cat ifcfg-=
bond0.2929
<o:p></o:p></p>
<p class=3D"MsoNormal">MACADDR=3Dfa:16:3e:d3:26:88<o:p></o:p></p>
<p class=3D"MsoNormal">USERCTL=3Dno<o:p></o:p></p>
<p class=3D"MsoNormal">PHYSDEV=3Dbond0<o:p></o:p></p>
<p class=3D"MsoNormal">VLAN=3Dyes<o:p></o:p></p>
<p class=3D"MsoNormal">NM_CONTROLLED=3Dno<o:p></o:p></p>
<p class=3D"MsoNormal">BOOTPROTO=3Ddhcp<o:p></o:p></p>
<p class=3D"MsoNormal">DEVICE=3Dbond0.2929<o:p></o:p></p>
<p class=3D"MsoNormal">TYPE=3DEthernet<o:p></o:p></p>
<p class=3D"MsoNormal">ONBOOT=3Dyes<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:17.25pt">
<span lang=3D"ZH-CN" style=3D"font-size:12.0pt;font-family:=CB=CE=CC=E5">=
=BB=AA=CE=AA=BC=BC=CA=F5=D3=D0=CF=DE=B9=AB=CB=BE</span><span style=3D"font-=
size:12.0pt;font-family:=CB=CE=CC=E5"> Huawei Technologies Co., Ltd.<br>
</span><span style=3D"font-size:12.0pt;font-family:=CB=CE=CC=E5"><img width=
=3D"102" height=3D"32" id=3D"_x0000_i1026" src=3D"file:///C:\Users\z0023378=
0\AppData\Roaming\Microsoft\Signatures\company_logo.jpg" alt=3D"Company_log=
o"></span><span style=3D"font-size:12.0pt;font-family:=CB=CE=CC=E5"><br>
<br>
<o:p></o:p></span></p>
<div class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span=
style=3D"font-size:12.0pt;font-family:=CB=CE=CC=E5">
<hr size=3D"2" width=3D"100%" align=3D"center">
</span></div>
<p class=3D"MsoNormal"><span lang=3D"ZH-CN" style=3D"font-size:7.5pt;font-f=
amily:=BB=AA=CE=C4=CF=B8=BA=DA;color:gray">=B1=BE=D3=CA=BC=FE=BC=B0=C6=E4=
=B8=BD=BC=FE=BA=AC=D3=D0=BB=AA=CE=AA=B9=AB=CB=BE=B5=C4=B1=A3=C3=DC=D0=C5=CF=
=A2=A3=AC=BD=F6=CF=DE=D3=DA=B7=A2=CB=CD=B8=F8=C9=CF=C3=E6=B5=D8=D6=B7=D6=D0=
=C1=D0=B3=F6=B5=C4=B8=F6=C8=CB=BB=F2=C8=BA=D7=E9=A1=A3=BD=FB</span><span st=
yle=3D"font-size:7.5pt;font-family:=BB=AA=CE=C4=CF=B8=BA=DA;color:gray"><br=
>
<span lang=3D"ZH-CN">=D6=B9=C8=CE=BA=CE=C6=E4=CB=FB=C8=CB=D2=D4=C8=CE=BA=CE=
=D0=CE=CA=BD=CA=B9=D3=C3=A3=A8=B0=FC=C0=A8=B5=AB=B2=BB=CF=DE=D3=DA=C8=AB=B2=
=BF=BB=F2=B2=BF=B7=D6=B5=D8=D0=B9=C2=B6=A1=A2=B8=B4=D6=C6=A1=A2=BB=F2=C9=A2=
=B7=A2=A3=A9=B1=BE=D3=CA=BC=FE=D6=D0</span><br>
<span lang=3D"ZH-CN">=B5=C4=D0=C5=CF=A2=A1=A3=C8=E7=B9=FB=C4=FA=B4=ED=CA=D5=
=C1=CB=B1=BE=D3=CA=BC=FE=A3=AC=C7=EB=C4=FA=C1=A2=BC=B4=B5=E7=BB=B0=BB=F2=D3=
=CA=BC=FE=CD=A8=D6=AA=B7=A2=BC=FE=C8=CB=B2=A2=C9=BE=B3=FD=B1=BE=D3=CA=BC=FE=
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</span><span style=3D"font-size:7.5pt;font-family:"Arial",sans-se=
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