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From Thomas Joseph <thomas.jo...@gmail.com>
Subject Re: Unable to ping secondary NIC ip of a VM in VPC
Date Mon, 10 Aug 2020 15:06:19 GMT
Sorry, I've not used v4.14, so someone else can comment on it being a bug.

I would advise you to enable the related nic in the file named interfaces
and restart the network service to check if that works.


On Mon, 10 Aug 2020, 8:29 pm Rakesh Venkatesh, <www.rakeshv.com@gmail.com>
wrote:

> Hello Thomas
>
>
> Thanks for the reply. It looks like the NIC is not configured properly in
> VM. I dont see IP 10.10.2.23 being configured
>
> # ip a
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
> default qlen 1
>     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
>     inet 127.0.0.1/8 scope host lo
>        valid_lft forever preferred_lft forever
>     inet6 ::1/128 scope host
>        valid_lft forever preferred_lft forever
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
> UP group default qlen 1000
>     link/ether 02:00:78:24:00:01 brd ff:ff:ff:ff:ff:ff
>     inet 10.10.1.51/24 brd 10.10.1.255 scope global eth0
>        valid_lft forever preferred_lft forever
>     inet6 fe80::78ff:fe24:1/64 scope link
>        valid_lft forever preferred_lft forever
> 3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default
> qlen 1000
>     link/ether 02:00:1f:ed:00:0e brd ff:ff:ff:ff:ff:ff
>
>
>
> I removed the secondary NIC, stopped the vm, added secondary NIC and
> started the VM. The extra NIC is still not configured in VM.
> Is this a bug?
>
> On Mon, Aug 10, 2020 at 4:46 PM Thomas Joseph <thomas.job07@gmail.com>
> wrote:
>
> > Hello Venkatesh,
> >
> > I'm guessing from the output provided that you have tried to ping the ip
> > from the VR.
> > Have you checked if the NIC is up on the VM?
> >  you can run tcpdump on the related VM to check if the icmp packets are
> > reaching the VM.
> >
> > Regards
> > Thomas
> >
> > On Mon, 10 Aug 2020, 8:06 pm Rakesh Venkatesh, <
> www.rakeshv.com@gmail.com>
> > wrote:
> >
> > > Hello,
> > >
> > > I have created a VPC with three tiers in it (tier1, tier2. tier3) using
> > > cloudstack 4.14.0.0 version with Ubuntu16 as OS for mgt, agent
> > > I created a VM in tier1 and I am able to ping its IP address
> > >
> > > # ping 10.10.1.51
> > > PING 10.10.1.51 (10.10.1.51): 56 data bytes
> > > 64 bytes from 10.10.1.51: icmp_seq=0 ttl=64 time=2.273 ms
> > > 64 bytes from 10.10.1.51: icmp_seq=1 ttl=64 time=1.690 ms
> > > ^C--- 10.10.1.51 ping statistics ---
> > >
> > >
> > > After adding secondary NIC to vm from tier2 or tier3 then I am not able
> > to
> > > ping that IP address.
> > >
> > > # ping 10.10.2.23
> > > PING 10.10.2.23 (10.10.2.23): 56 data bytes
> > > 92 bytes from 10.10.2.254: Destination Host Unreachable
> > > 92 bytes from 10.10.2.254: Destination Host Unreachable
> > > 92 bytes from 10.10.2.254: Destination Host Unreachable
> > > 92 bytes from 10.10.2.254: Destination Host Unreachable
> > > ^C--- 10.10.2.23 ping statistics ---
> > >
> > >
> > >
> > > Dchphost content
> > >
> > > # cat /etc/dhcphosts.txt
> > > 02:00:72:36:00:01,10.10.2.83,tier12,infinite
> > > 02:00:2f:16:00:0c,set:10_10_2_23,10.10.2.23,tier11,infinite
> > > 02:00:78:24:00:01,10.10.1.51,tier11,infinite
> > >
> > >
> > >
> > > Dhcpopts content
> > >
> > >
> > > # cat /etc/dhcpopts.txt
> > > 10_10_2_23,3
> > > 10_10_2_23,6
> > > 10_10_2_23,15
> > >
> > >
> > > I don't see any errors in /var/log/cloud.log on VR when secondary nic
> is
> > > added.
> > > Is there any other I can troubleshoot this or look for logs?
> > >
> > > --
> > > Thanks and regards
> > > Rakesh
> > >
> >
>
>
> --
> Thanks and regards
> Rakesh venkatesh
>

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