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From wq meng <wqm...@gmail.com>
Subject Re: allow outbound access by default on virtual routers
Date Sat, 01 Jun 2013 21:01:27 GMT
Hello Jayapal,

I add a iptables rule

iptables -t nat -A POSTROUTING -s 10.1.1.0/24 -o eth2 -j SNAT --to
xxx.105.191.147

And it seems works now.  I can ping Google inside the Guest VM.


Just a few questions,  Why in my VR-VM, it have  eth3, eth4?  Where are
they come from,  in the interface file, there is not configuration for eth3
and eth4 at all.

Sometimes, I reboot the VR-VM, the eth4 is disappear, only left eth3, but
as you can know, it still not work, As eth3 is not a NIC at all.

Then maybe the VR-VM have some buggy scripts when the VR-VM start , and
which mis-configuration the NICs and also the NAT rules for VRouter?


As the CS4.1 will be release soon on Monday,  I am not sure, if it need
spend more time to look deep.

Thank you very much.


On Sat, Jun 1, 2013 at 6:38 PM, wq meng <wqmeng@gmail.com> wrote:

> Hello,
>
> Sorry for the delay,
>
> Here is the NAT table. Please check.
> The xxx.105.191.147 IP is the public IP for the VRouter-VM.
>
> root@r-6-VM:~# iptables -t nat -L -nv
> Chain PREROUTING (policy ACCEPT 258 packets, 13822 bytes)
>  pkts bytes target     prot opt in     out     source
> destination
>
> Chain POSTROUTING (policy ACCEPT 4 packets, 532 bytes)
>  pkts bytes target     prot opt in     out     source
> destination
>     0     0 SNAT       all  --  *      eth3    0.0.0.0/0
> 0.0.0.0/0           to:xxx.105.191.147
>     0     0 SNAT       all  --  *      eth4    0.0.0.0/0
> 0.0.0.0/0           to:xxx.105.191.147
>
> Chain OUTPUT (policy ACCEPT 3 packets, 448 bytes)
>  pkts bytes target     prot opt in     out     source
> destination
>
> root@r-6-VM:~#
>
>
> Thanks a lot.
>
>
> On Mon, May 27, 2013 at 1:09 PM, Jayapal Reddy Uradi <
> jayapalreddy.uradi@citrix.com> wrote:
>
>> From the  packet captures on eth2,  the vm IP seems to be  not NATed.
>> 13:39:41.991966 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879, seq 126, length 64
>>
>> Can you also share iptables -t nat -L -nv output.
>>
>> Thanks,
>> Jayapal
>>
>> > -----Original Message-----
>> > From: wq meng [mailto:wqmeng@gmail.com]
>> > Sent: Friday, 24 May 2013 7:13 PM
>> > To: users@cloudstack.apache.org
>> > Subject: Re: allow outbound access by default on virtual routers
>> >
>> > Hello Jayapal
>> >
>> >
>> >
>> >
>> > I ping google.com on the Guest VM,
>> >
>> > Here is the dump data from the router - VM.
>> >
>> > Please review.
>> >
>> > And the 2.*.2 is public IP, which I replace to the real ip.
>> >
>> >
>> > Thank you very much.
>> >
>> >
>> >
>> >
>> > root@r-7-VM:~#
>> > root@r-7-VM:~# tcpdump  -i  eth0 -nq
>> > tcpdump: verbose output suppressed, use -v or -vv for full protocol
>> decode
>> > listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
>> > 13:38:52.979198 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 77, length 64
>> > 13:38:53.979203 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 78, length 64
>> > 13:38:54.979205 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 79, length 64
>> > 13:38:55.978182 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 80, length 64
>> > 13:38:56.979188 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 81, length 64
>> > 13:38:57.979299 ARP, Request who-has 10.1.1.1 tell 10.1.1.4, length 28
>> > 13:38:57.979307 ARP, Reply 10.1.1.1 is-at 02:00:00:b1:00:05, length 28
>> > 13:38:57.979315 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 82, length 64
>> > 13:38:58.979250 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 83, length 64
>> > 13:38:59.979297 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 84, length 64
>> > 13:39:00.979313 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 85, length 64
>> > 13:39:01.978311 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 86, length 64
>> > 13:39:02.979282 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 87, length 64
>> > 13:39:03.979323 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 88, length 64
>> > 13:39:04.979315 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 89, length 64
>> > 13:39:05.979364 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 90, length 64
>> > 13:39:06.979420 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 91, length 64
>> > 13:39:07.978421 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 92, length 64
>> > 13:39:08.978432 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 93, length 64
>> > 13:39:09.979447 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 94, length 64
>> > 13:39:10.979437 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 95, length 64
>> > 13:39:11.979474 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 96, length 64
>> > 13:39:12.979473 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 97, length 64
>> > 13:39:13.978525 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 98, length 64
>> > 13:39:14.978535 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 99, length 64
>> > 13:39:15.979562 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 100, length 64
>> > 13:39:16.979575 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 101, length 64
>> > 13:39:17.979602 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 102, length 64
>> > 13:39:18.979584 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 103, length 64
>> > 13:39:19.988541 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 104, length 64
>> > 13:39:20.988615 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 105, length 64
>> > 13:39:21.988598 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 106, length 64
>> > 13:39:22.989582 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 107, length 64
>> > 13:39:23.989666 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 108, length 64
>> > 13:39:24.989695 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 109, length 64
>> > 13:39:25.989725 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 110, length 64 ^C
>> > 36 packets captured
>> > 36 packets received by filter
>> > 0 packets dropped by kernel
>> > root@r-7-VM:~# tcpdump  -i eth2 -nq
>> > tcpdump: verbose output suppressed, use -v or -vv for full protocol
>> decode
>> > listening on eth2, link-type EN10MB (Ethernet), capture size 65535 bytes
>> > 13:39:38.380208 ARP, Request who-has 2.*.2.22 tell 2.*.2.1, length 42
>> > 13:39:38.982570 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:39:38.987877 ARP, Request who-has 2.*.2.35 tell 2.*.2.1, length 42
>> > 13:39:38.991937 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 123, length 64
>> > 13:39:39.194709 ARP, Request who-has 2.*.2.22 tell 2.*.2.1, length 42
>> > 13:39:39.599296 ARP, Request who-has 2.*.2.35 tell 2.*.2.1, length 42
>> > 13:39:39.904508 ARP, Request who-has 2.*.2.22 tell 2.*.2.1, length 42
>> > 13:39:39.991931 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 124, length 64
>> > 13:39:40.417287 ARP, Request who-has 2.*.2.35 tell 2.*.2.1, length 42
>> > 13:39:40.730305 ARP, Request who-has 2.*.2.22 tell 2.*.2.1, length 42
>> > 13:39:40.982552 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:39:40.991980 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 125, length 64
>> > 13:39:41.337501 ARP, Request who-has 2.*.2.35 tell 2.*.2.1, length 42
>> > 13:39:41.437224 ARP, Request who-has 2.*.2.22 tell 2.*.2.1, length 42
>> > 13:39:41.991966 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 126, length 64
>> > 13:39:42.903756 ARP, Request who-has 2.*.2.248 tell 2.*.2.1, length 42
>> > 13:39:42.982539 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:39:42.992996 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 127, length 64
>> > 13:39:43.682772 ARP, Request who-has 2.*.2.248 tell 2.*.2.1, length 42
>> > 13:39:43.993009 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 128, length 64
>> > 13:39:44.502714 ARP, Request who-has 2.*.2.248 tell 2.*.2.1, length 42
>> > 13:39:44.509679 ARP, Request who-has 2.*.2.228 tell 2.*.2.1, length 42
>> > 13:39:44.585413 ARP, Request who-has 2.*.2.70 tell 2.*.2.1, length 42
>> > 13:39:44.982554 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:39:44.993017 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 129, length 64
>> > 13:39:45.160097 ARP, Request who-has 2.*.2.53 tell 2.*.2.1, length 42
>> > 13:39:45.215168 ARP, Request who-has 2.*.2.70 tell 2.*.2.1, length 42
>> > 13:39:45.318277 ARP, Request who-has 2.*.2.228 tell 2.*.2.1, length 42
>> > 13:39:45.325738 ARP, Request who-has 2.*.2.34 tell 2.*.2.1, length 42
>> > 13:39:45.421375 ARP, Request who-has 2.*.2.248 tell 2.*.2.1, length 42
>> > 13:39:45.826574 ARP, Request who-has 2.*.2.70 tell 2.*.2.1, length 42
>> > 13:39:45.928821 ARP, Request who-has 2.*.2.228 tell 2.*.2.1, length 42
>> > 13:39:45.930246 ARP, Request who-has 2.*.2.53 tell 2.*.2.1, length 42
>> > 13:39:45.993039 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 130, length 64
>> > 13:39:46.030400 ARP, Request who-has 2.*.2.248 tell 2.*.2.1, length 42
>> > 13:39:46.031609 ARP, Request who-has 2.*.2.34 tell 2.*.2.1, length 42
>> > 13:39:46.349636 ARP, Request who-has 2.*.2.3 tell 2.*.2.1, length 42
>> > 13:39:46.439927 ARP, Request who-has 2.*.2.70 tell 2.*.2.1, length 42
>> > 13:39:46.486265 ARP, Request who-has 2.*.2.32 tell 2.*.2.1, length 42
>> > 13:39:46.541822 ARP, Request who-has 2.*.2.228 tell 2.*.2.1, length 42
>> > 13:39:46.850884 ARP, Request who-has 2.*.2.53 tell 2.*.2.1, length 42
>> > 13:39:46.952230 ARP, Request who-has 2.*.2.34 tell 2.*.2.1, length 42
>> > 13:39:46.982553 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:39:46.993050 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 131, length 64
>> > 13:39:47.051629 ARP, Request who-has 2.*.2.70 tell 2.*.2.1, length 42
>> > 13:39:47.154197 ARP, Request who-has 2.*.2.228 tell 2.*.2.1, length 42
>> > 13:39:47.155893 ARP, Request who-has 2.*.2.3 tell 2.*.2.1, length 42
>> > 13:39:47.258228 ARP, Request who-has 2.*.2.32 tell 2.*.2.1, length 42
>> > 13:39:47.459210 ARP, Request who-has 2.*.2.53 tell 2.*.2.1, length 42
>> > 13:39:47.561218 ARP, Request who-has 2.*.2.34 tell 2.*.2.1, length 42
>> > 13:39:47.970622 ARP, Request who-has 2.*.2.32 tell 2.*.2.1, length 42
>> > 13:39:47.971612 ARP, Request who-has 2.*.2.3 tell 2.*.2.1, length 42
>> > 13:39:47.993074 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 132, length 64
>> > 13:39:48.380271 ARP, Request who-has 2.*.2.34 tell 2.*.2.1, length 42
>> > 13:39:48.381173 ARP, Request who-has 2.*.2.53 tell 2.*.2.1, length 42
>> > 13:39:48.581498 ARP, Request who-has 2.*.2.32 tell 2.*.2.1, length 42
>> > 13:39:48.890259 ARP, Request who-has 2.*.2.3 tell 2.*.2.1, length 42
>> > 13:39:48.982519 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:39:48.994081 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 133, length 64
>> > 13:39:49.290934 ARP, Request who-has 2.*.2.42 tell 2.*.2.1, length 42
>> > 13:39:49.302649 ARP, Request who-has 2.*.2.32 tell 2.*.2.1, length 42
>> > 13:39:49.433752 ARP, Request who-has 2.*.2.116 tell 2.*.2.1, length 42
>> > 13:39:49.812965 ARP, Request who-has 2.*.2.3 tell 2.*.2.1, length 42
>> > 13:39:49.994099 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 134, length 64
>> > 13:39:50.014695 ARP, Request who-has 2.*.2.42 tell 2.*.2.1, length 42
>> > 13:39:50.118276 ARP, Request who-has 2.*.2.116 tell 2.*.2.1, length 42
>> > 13:39:50.933507 ARP, Request who-has 2.*.2.116 tell 2.*.2.1, length 42
>> > 13:39:50.934227 ARP, Request who-has 2.*.2.42 tell 2.*.2.1, length 42
>> > 13:39:50.982526 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:39:50.994092 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 135, length 64
>> > 13:39:51.643878 ARP, Request who-has 2.*.2.42 tell 2.*.2.1, length 42
>> > 13:39:51.848044 ARP, Request who-has 2.*.2.116 tell 2.*.2.1, length 42
>> > 13:39:51.994151 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 136, length 64
>> > 13:39:52.452001 ARP, Request who-has 2.*.2.116 tell 2.*.2.1, length 42
>> > 13:39:52.453417 ARP, Request who-has 2.*.2.42 tell 2.*.2.1, length 42
>> > 13:39:52.982496 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:39:52.994150 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 137, length 64
>> > 13:39:53.994171 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 138, length 64
>> > 13:39:54.982573 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:39:54.994188 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 139, length 64
>> > 13:39:55.995186 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 140, length 64
>> > 13:39:56.982561 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:39:56.995215 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 141, length 64
>> > 13:39:57.991661 ARP, Request who-has 2.*.2.1 tell 2.*.2.25, length 28
>> > 13:39:57.992092 ARP, Reply 2.*.2.1 is-at 5c:5e:ab:da:b9:c0, length 42
>> > 13:39:57.995220 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 142, length 64
>> > 13:39:58.982566 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:39:58.995244 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 143, length 64
>> > 13:39:59.995280 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 144, length 64
>> > 13:40:00.417613 ARP, Request who-has 2.*.2.4 tell 2.*.2.1, length 42
>> > 13:40:00.982547 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:40:00.995274 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 145, length 64
>> > 13:40:01.170853 ARP, Request who-has 2.*.2.4 tell 2.*.2.1, length 42
>> > 13:40:01.996303 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 146, length 64
>> > 13:40:02.074725 ARP, Request who-has 2.*.2.4 tell 2.*.2.1, length 42
>> > 13:40:02.359140 ARP, Request who-has 2.*.2.161 tell 2.*.2.1, length 42
>> > 13:40:02.982500 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:40:02.985123 ARP, Request who-has 2.*.2.4 tell 2.*.2.1, length 42
>> > 13:40:02.996303 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 147, length 64
>> > 13:40:03.186378 ARP, Request who-has 2.*.2.161 tell 2.*.2.1, length 42
>> > 13:40:03.417268 ARP, Request who-has 2.*.2.20 tell 2.*.2.1, length 42
>> > 13:40:03.699414 ARP, Request who-has 2.*.2.4 tell 2.*.2.1, length 42
>> > 13:40:03.996329 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 148, length 64
>> > 13:40:03.998677 ARP, Request who-has 2.*.2.161 tell 2.*.2.1, length 42
>> > 13:40:04.301363 ARP, Request who-has 2.*.2.20 tell 2.*.2.1, length 42
>> > 13:40:04.432828 ARP, Request who-has 2.*.2.115 tell 2.*.2.1, length 42
>> > 13:40:04.435467 ARP, Request who-has 2.*.2.23 tell 2.*.2.1, length 42
>> > 13:40:04.820262 ARP, Request who-has 2.*.2.161 tell 2.*.2.1, length 42
>> > 13:40:04.920378 ARP, Request who-has 2.*.2.20 tell 2.*.2.1, length 42
>> > 13:40:04.982690 STP 802.1d, Config, Flags [none], bridge-id
>> > 8000.00:25:90:a4:98:3e.8004, length 35
>> > 13:40:04.996336 IP 10.1.1.4 > 74.125.224.228: ICMP echo request, id
>> 56879,
>> > seq 149, length 64
>> > 13:40:05.124674 ARP, Request who-has 2.*.2.23 tell 2.*.2.1, length 42
>> > 13:40:05.124678 ARP, Request who-has 2.*.2.115 tell 2.*.2.1, length 42
>> > 13:40:05.399662 ARP, Request who-has 2.*.2.12 tell 2.*.2.1, length 42
>> > 13:40:05.429940 ARP, Request who-has 2.*.2.161 tell 2.*.2.1, length 42
>> ^C
>> > 115 packets captured
>> > 115 packets received by filter
>> > 0 packets dropped by kernel
>> > root@r-7-VM:~#
>> >
>> >
>> > On Fri, May 24, 2013 at 12:55 PM, Jayapal Reddy Uradi
>> > <jayapalreddy.uradi@citrix.com> wrote:
>> > > Iptables rules are looking fine.
>> > > Can you please do the following.
>> > > 1. ping google.com from vm
>> > > 2. run the tcpdump command on the router eth0, eth2  and see the
>> > packets are reaching to guest interface
>> > >     tcpdump  -i  eth0 -nq
>> > >    tcpdump  -i eth2 -nq
>> > >
>> > > If guest vm icmp packets are not reaching to eth0 and eth2 then there
>> is
>> > issue in your network setup.
>> > >
>> > > Thanks,
>> > > Jayapal
>> > >
>> > >
>> > >> -----Original Message-----
>> > >> From: wq meng [mailto:wqmeng@gmail.com]
>> > >> Sent: Friday, 24 May 2013 1:27 AM
>> > >> To: users@cloudstack.apache.org
>> > >> Subject: Re: allow outbound access by default on virtual routers
>> > >>
>> > >> Hello,
>> > >>
>> > >> Have you tried this and get this to work?
>> > >>
>> > >> I think I have the same problem just can not get the Guest VM to
>> > >> access outbound by the V-router vm.
>> > >>
>> > >> my guest NIC is eth0, the public NIC is eth2.
>> > >>
>> > >> Here is the default rules in the Router VM.  How to apply the rules
>> > >> to get the Guest VM can access outbound?
>> > >>
>> > >> Could you help me to show how?   I have tried many times, just no
>> luck of
>> > it.
>> > >>
>> > >> Thank you very much.
>> > >>
>> > >>
>> > >> root@r-7-VM:~# cat /etc/iptables/rules
>> > >>
>> > >>
>> > >> # Licensed to the Apache Software Foundation (ASF) under one # or
>> > >> more contributor license agreements.  See the NOTICE file #
>> > >> distributed with this work for additional information # regarding
>> > >> copyright ownership.  The ASF licenses this file # to you under the
>> > >> Apache License, Version 2.0 (the # "License"); you may not use this
>> file
>> > except in compliance # with the License.
>> > >> You may obtain a copy of the License at #
>> > >> #   http://www.apache.org/licenses/LICENSE-2.0
>> > >> #
>> > >> # Unless required by applicable law or agreed to in writing, #
>> > >> software distributed under the License is distributed on an # "AS IS"
>> > >> BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY # KIND, either
>> > express or implied.
>> > >> See the License for the # specific language governing permissions and
>> > >> limitations # under the License.
>> > >>
>> > >> *nat
>> > >> :PREROUTING ACCEPT [0:0]
>> > >> :POSTROUTING ACCEPT [0:0]
>> > >> :OUTPUT ACCEPT [0:0]
>> > >> COMMIT
>> > >> *filter
>> > >> :INPUT DROP [0:0]
>> > >> :FORWARD DROP [0:0]
>> > >> :OUTPUT ACCEPT [0:0]
>> > >> -A INPUT -d 224.0.0.18/32 -j ACCEPT
>> > >> -A INPUT -d 225.0.0.50/32 -j ACCEPT
>> > >> -A INPUT -i eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT -A
>> > >> INPUT -i
>> > >> eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -i eth2
>> > >> -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -p icmp -j
>> > >> ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -i eth0 -p udp -m udp
>> > >> --dport 67 -j ACCEPT -A INPUT -i eth0 -p udp -m udp --dport 53 -j
>> > >> ACCEPT -A INPUT -i eth1 -p tcp -m state --state NEW --dport 3922 -j
>> > >> ACCEPT -A INPUT -i eth0 -p tcp -m state -- state NEW --dport 8080 -j
>> > >> ACCEPT -A INPUT -i eth0 -p tcp -m state --state NEW --dport 80 -j
>> > >> ACCEPT -A FORWARD -i eth0 -o eth1 -m state --state
>> > >> RELATED,ESTABLISHED -j ACCEPT -A FORWARD -i eth0 -o eth2 -j ACCEPT
-A
>> > >> FORWARD -i eth2 -o eth0 -m state --state RELATED,ESTABLISHED -j
>> > >> ACCEPT -A FORWARD -i eth0 -o eth0 -m state --state NEW -j ACCEPT -A
>> > >> FORWARD -i
>> > >> eth0 -o eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT COMMIT
>> > >> *mangle :PREROUTING ACCEPT [0:0] :INPUT ACCEPT [0:0] :FORWARD
>> > ACCEPT
>> > >> [0:0] :OUTPUT ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] -A PREROUTING
>> > -m
>> > >> state --state ESTABLISHED,RELATED -j CONNMARK -- restore-mark -A
>> > >> POSTROUTING -p udp --dport bootpc -j CHECKSUM -- checksum-fill
>> > COMMIT
>> > >>
>> > >>
>> > >> root@r-7-VM:~# ifconfig
>> > >>
>> > >>
>> > >> On Mon, May 20, 2013 at 5:29 PM, Jayapal Reddy Uradi
>> > >> <jayapalreddy.uradi@citrix.com> wrote:
>> > >> >
>> > >> > Currently we don't have the configurable option.
>> > >> >
>> > >> > 1. You can add egress rule on network with protocol 'all' to allow
>> > >> > all
>> > >> outbound traffic once the network is created.
>> > >> >
>> > >> > 2. If you want to allow traffic by default when ever router is
>> > >> > created One work around will be add the below line into the
>> > >> > iptables-router file
>> > >> after the this line    -I FW_OUTBOUND -m state --state
>> > RELATED,ESTABLISHED
>> > >> -j ACCEPT
>> > >> >
>> > >> > -A FW_OUTBOUND  -j ACCEPT
>> > >> >
>> > >> >
>> > >> > Thanks,
>> > >> > Jayapal
>> > >> >
>> > >> >
>> > >> > On 20-May-2013, at 2:18 PM, Len Bellemore
>> > >> <Len.Bellemore@ControlCircle.com> wrote:
>> > >> >
>> > >> >> Hi Guys
>> > >> >>
>> > >> >> Anyone know if it's possible to change some of the default
options
>> > >> >> on a
>> > >> virtual router, so that every time it gets created it has particular
>> rules?
>> > >> >>
>> > >> >> My main issue is that I want to allow outbound access by default
>> > >> >> to every
>> > >> account.
>> > >> >>
>> > >> >> Thanks
>> > >> >> Len
>> > >> >>
>> > >> >
>>
>
>

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