[Qemu-discuss] Qemu networking with olive(Freebsd)

[Nikolay Abromov]

Dear List, 


I am trying to configure few junos routers using Qemu (sorry if that's not the right place to ask) interconnecting them with tap/bridge interfaces on FreeBSD - unfortunately there is arp flood between the routers and I was wondering if any one had the similar issues and know how to solve it.



Thank you in advance

QEMU config:


qemu -m 512 -no-acpi -hda r1/Olive11.1R1.14.img -nographic -daemonize -serial telnet::2001,server,nowait -localtime -net nic,vlan=1,macaddr=00:01:00:60:01:01,model=i82557b -net tap,vlan=1,ifname=tap0, -net nic,vlan=1,macaddr=00:01:10:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap1, -net nic,vlan=1,macaddr=00:01:00:60:11:03,model=i82557b -net tap,vlan=1,ifname=tap2, -net nic,vlan=1,macaddr=00:01:00:70:01:04,model=i82557b -net tap,vlan=1,ifname=tap3,

qemu -m 512 -no-acpi -hda r2/Olive11.1R2.14.img -nographic -daemonize -serial telnet::2002,server,nowait -localtime -net nic,vlan=1,macaddr=00:01:03:61:01:01,model=i82557b -net tap,vlan=1,ifname=tap4, -net nic,vlan=1,macaddr=00:01:20:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap5, -net nic,vlan=1,macaddr=00:01:00:60:21:03,model=i82557b -net tap,vlan=1,ifname=tap6, -net nic,vlan=1,macaddr=00:01:00:71:01:04,model=i82557b -net tap,vlan=1,ifname=tap7,

qemu -m 512 -no-acpi -hda r3/Olive11.1R3.14.img -nographic -daemonize -serial telnet::2003,server,nowait -localtime -net nic,vlan=1,macaddr=00:aa:00:62:01:01,model=i82557b -net tap,vlan=1,ifname=tap8, -net nic,vlan=1,macaddr=00:aa:30:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap9, -net nic,vlan=1,macaddr=00:aa:00:60:31:03,model=i82557b -net tap,vlan=1,ifname=tap10, -net nic,vlan=1,macaddr=00:aa:00:72:01:04,model=i82557b -net tap,vlan=1,ifname=tap11, -net nic,vlan=1,macaddr=00:ba:31:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap12 , -net nic,vlan=1,macaddr=10:aa:36:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap13

qemu -m 512 -no-acpi -hda r4/Olive11.1R4.14.img -nographic -daemonize -serial telnet::2004,server,nowait -localtime -net nic,vlan=1,macaddr=00:aa:00:63:01:01,model=i82557b -net tap,vlan=1,ifname=tap14, -net nic,vlan=1,macaddr=00:aa:11:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap15, -net nic,vlan=1,macaddr=00:aa:00:60:41:03,model=i82557b -net tap,vlan=1,ifname=tap16, -net nic,vlan=1,macaddr=00:aa:00:73:01:04,model=i82557b -net tap,vlan=1,ifname=tap17, -net nic,vlan=1,macaddr=00:ba:32:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap18 , -net nic,vlan=1,macaddr=10:aa:37:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap19

qemu -m 512 -no-acpi -hda r5/Olive11.1R5.14.img -nographic -daemonize -serial telnet::2005,server,nowait -localtime -net nic,vlan=1,macaddr=00:aa:00:64:01:01,model=i82557b -net tap,vlan=1,ifname=tap20, -net nic,vlan=1,macaddr=00:aa:12:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap21, -net nic,vlan=1,macaddr=00:aa:00:60:51:03,model=i82557b -net tap,vlan=1,ifname=tap22, -net nic,vlan=1,macaddr=00:aa:00:74:01:04,model=i82557b -net tap,vlan=1,ifname=tap23, -net nic,vlan=1,macaddr=00:ba:33:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap24 , -net nic,vlan=1,macaddr=10:aa:38:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap25

qemu -m 512 -no-acpi -hda r6/Olive11.1R6.14.img -nographic -daemonize -serial telnet::2006,server,nowait -localtime -net nic,vlan=1,macaddr=00:aa:00:65:01:01,model=i82557b -net tap,vlan=1,ifname=tap26, -net nic,vlan=1,macaddr=00:aa:13:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap27, -net nic,vlan=1,macaddr=00:aa:00:60:61:03,model=i82557b -net tap,vlan=1,ifname=tap28, -net nic,vlan=1,macaddr=00:aa:00:75:01:04,model=i82557b -net tap,vlan=1,ifname=tap29, -net nic,vlan=1,macaddr=00:ba:34:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap30 , -net nic,vlan=1,macaddr=10:aa:39:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap31

qemu -m 512 -no-acpi -hda r7/Olive11.1R7.14.img -nographic -daemonize -serial telnet::2007,server,nowait -localtime -net nic,vlan=1,macaddr=00:aa:00:66:01:01,model=i82557b -net tap,vlan=1,ifname=tap32, -net nic,vlan=1,macaddr=00:aa:14:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap33, -net nic,vlan=1,macaddr=00:aa:00:60:71:03,model=i82557b -net tap,vlan=1,ifname=tap34, -net nic,vlan=1,macaddr=00:aa:00:76:01:04,model=i82557b -net tap,vlan=1,ifname=tap35, -net nic,vlan=1,macaddr=00:ba:35:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap36 , -net nic,vlan=1,macaddr=10:aa:40:60:01:02,model=i82557b -net tap,vlan=1,ifname=tap37


[router_id:tap_interface - router_id: tap_interface] 
each p2p link is within it's own bridge interface. 

r1: tap2 r2:tap4
r1: tap1 r4:tap15
r1: tap0 r3:tap8

r2: tap5 r3: tap9
r2: tap6 r4: tap15


r3: tap11 r4: tap 16
r3: tap 12 r5: tap 21
r3: tap 12 r6: tap 26

r4: tap17 r5:tap20
r4: tap 18 r7:tap32

r5: tap22 r6: tap 27
r5: tap 23 r7:tap 33

dump of bridge0 (r1 and r2)


09:09:20.346656 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.346880 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.346890 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.347134 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.347144 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.347290 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.347300 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.347313 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.347321 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.347759 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.347958 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.347969 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.348225 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.348466 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.348476 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.348706 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.348716 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.348944 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.348954 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.349186 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
09:09:20.349196 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 10.10.12.2 tell 10.10.12.1, length 28
...


Regards,
Nik