Re: [mpls-linux-devel] L2 VPN with MPLS - another problem

[Adrian P. <adr...@gm...>]

Sorry I couldn't help in time, but I was on vacantion without access to
email. Good to hear you solved it!

Regards,
Adrian

On Thu, May 13, 2010 at 9:29 AM, Pali <pal...@gm...> wrote:

> Problem solved : )
> *
> sudo chmod a+rwx /dev/vmnet* -v*
>
> do the work. Problem was in security setting that prohibit promiscuous mode
> to regular user. More about this:
>
> *
> http://www.vmware.com/support/ws55/doc/ws_net_advanced_linux_vadapter_promiscuous.html
> *
>
>
>
> 2010/5/12 Pali <pal...@gm...>
>
>> Hi everybody, there is a little bit of magic, for some time LAB works as
>> expected, pings return back, even TCP connections works across mpls tunnel
>> (in tcpdump could be seen both tunnels) Even if I change hosts A1 and A2 for
>> different clients, it also work. After rebooting Linux routers, problem
>> repeat, arp replay does not appear inside the tunnel. Will explore why is it
>> so, any clue?
>>
>>
>> 2010/5/12 Pali <pal...@gm...>
>>
>>> Hi everbody,
>>> I collected all useful information to debug L2VPN lab. I added them as
>>> mail attachment, or they could be downloaded from:
>>>
>>> *http://www.localnet.sk/~maestro/dnl/mpls-linux/l2vpn_public_log.tgz<http://www.localnet.sk/%7Emaestro/dnl/mpls-linux/l2vpn_public_log.tgz>
>>> *
>>>
>>> If anybody has a clue what is wrong, please write it. If someone find
>>> useful, I could also hang network topology and all VM on Internet.
>>>
>>> Pali
>>>
>>> 2010/5/12 Pali <pal...@gm...>
>>>
>>>> Hi mpls community,
>>>>
>>>> I successfully run
>>>>
>>>>  *MPLS-Linux labs – 5.1 Layer 2 VPN with MPLS*
>>>> *
>>>> http://www.sj.ifsc.edu.br/~msobral/RCO2/docs/mpls-linux/5-1-layer2_vpn.html<http://www.sj.ifsc.edu.br/%7Emsobral/RCO2/docs/mpls-linux/5-1-layer2_vpn.html>
>>>> *
>>>>
>>>> using last stable Etch Debian with kernel 2.6.15.1 and mpls v1.950
>>>> patch. No more kernel panic appear, just kernel oops when I execute *
>>>> del_mpls.sh* with no previous mpls configuration.
>>>>
>>>> Linux routers are quite stable, on uplink direction (A1->A3) everything
>>>> works fine, broadcast, and arp request successfully travel from A1 to A3. No
>>>> traffic return back, even I see arp reply on A3. Let me describe situation:
>>>>
>>>> A1: ping 172.16.30.30 or arping -i eth2 172.16.30.30
>>>> E2: receive ICMP echo request on eth1, encapsulate as two layer MPLS
>>>> packet (1000,100) and send out on eth0.
>>>> E3: receive MPLS packet, change top label 1000 to 3000 and send MPLS
>>>> packet (3000,100) from outgoing interface eth2.
>>>> E1: receive MPLS packet (3000,100), remove all labels and send Ethernet
>>>> frame from outging eth1
>>>> A3: receive arp request on 172.16.30.30, because it has requested IP
>>>> address, if replay with ARP-reply, that 172.16.30.30 is available under MAC
>>>> address 00:0c:29:54:f1:0d
>>>> E1: receive no ARP replay so it encapsulate no traffic back to
>>>> E3->E2->A1. Here is the problem that I need to solve.
>>>>
>>>> I have same results with ping (L3) and arping (L2), even if I configure
>>>> staticly MAC address of remote computer on A1 and A3
>>>>
>>>> example of static assignment:
>>>> A3: arp -v -i eth0 -s 172.16.30.10 00:0c:29:53:64:53
>>>>
>>>> When I bypass MPLS network and connect A1 and A3 directly, everything
>>>> works as expected, even with static MAC address assignment.
>>>>
>>>> Any ideas what could be wrong?
>>>> I have this topology connected and freeze as virtual machines on VMware
>>>> Workstation, so I can provide anytime all information, that You will
>>>> request. I will search also mpls-linux mailing list archive if I found
>>>> something.
>>>>
>>>>
>>>> --
>>>> << 0903 48 47 40 >> mobil
>>>> << 309458351 >> icq
>>>> << ortseamo >> skype
>>>>
>>>
>>
>>
>> --
>> Ak si prajes aby som cital tvoj mail do 5 min, tak napis do predmetu X5.
>> Na skype som dostupny stale, len mi daj vediet aby som sa prihlasil.
>>
>> << 0903 48 47 40 >> mobil
>> << 309458351 >> icq
>> << ortseamo >> skype
>>
>
>
>
> --
> Ak si prajes aby som cital tvoj mail do 5 min, tak napis do predmetu X5.
> Na skype som dostupny stale, len mi daj vediet aby som sa prihlasil.
>
> << 0903 48 47 40 >> mobil
> << 309458351 >> icq
> << ortseamo >> skype
>