[Xorp-users] compilation problmes with mips
RamaKanthVarala
varala_kanth at yahoo.com
Wed Mar 25 11:04:52 PDT 2009
pavlin,
As i told you in my previous mails the reverse is working i.e
wan pc --> HUB --> (eth0) xorp router ( fedoralinux box ) (eth 1) ---> lan pc
Here in xorp router machine CONFIG_IP_PIMSM_V2=y is enabled.
As for as the wan router is concerned when the streaming is being passed between the wan pc and lan pc is that not cofirm that even in router also PIMSM enabled ..?
Iam using the same setup except now wan pc is host and lan pc is source.
My primary doubt is in my configuration .
Here 192.168.1.10 is my lan pc and 239.1.2.3 is the multicast range to which iam streaming.
When we check the follwing messages it's printing in console
as " mfea_mrouter.cc get_sg_count ] ioctl(SIOCGETSGCNT, (192.168.1.10 239.1.2.3)) failed:
Cannot assign requested address "
These are printed immedialtely when i start streaming in mylan pc.
I think i should add properly static-rps in configuration file .
Please guide me in this regard
kanth
ps:if this mail already reached you kindly ignore this one , iam experiencing some internet problems in my end
________________________________
From: Pavlin Radoslavov <pavlin at ICSI.Berkeley.EDU>
To: RamaKanthVarala <varala_kanth at yahoo.com>
Cc: Pavlin Radoslavov <pavlin at ICSI.Berkeley.EDU>; xorp-users at xorp.org
Sent: Wednesday, 25 March, 2009 8:05:21 PM
Subject: Re: [Xorp-users] compilation problmes with mips
Kanth,
You need to enable PIM-SM in your WAN router, and all other routers
between you and the multicast source (and the RP). Furthermore, all
PIM-SM routers must have exactly same Cand-RP set, otherwise
multicast routing won't work.
Re. your question of "passing the info" from eth1 to eth0.
The IGMP Join information on eth1 actually becomes PIM-SM Join on
eth0 toward the RP. Those PIM-SM Join messages are propagated
hop-by-hop toward the RP (or the source) hence the need for all
routers in the middle to run PIM-SM and have exactly same Cand-RP
set.
FYI, the choice whether the PIM-SM Join goes toward the RP or the
source depends on several factors. Typically the initial join is
toward the RP, but later the (periodic) joins might go toward the
source.
Hope that helps,
Pavlin
RamaKanthVarala <varala_kanth at yahoo.com> wrote:
> Thanks pavlin ,
>
> Here with the same below setup iam trying to do the reverse operation i.e Lan PC will be working as a source and the reciver will be in the WAN.
>
> I could not able to receive the streaming in Wan VLC player .
>
> The logs are attached as .txt file along with this mail.
>
> I gave try by changeing the config.boot as below
>
>
> static-rps {
> rp *.*.2.38 {
> group-prefix 224.0.0.0/4 {
> }
> }
> }
>
>
> Here *.200.2.38 is my eth0 public ip. eth1 is 192.168.1.1 and my lan pc is 192.168.1.10
>
> Should i configure or make some changes in my Wan router like for this specific group 239.1.2.3 rp is 1*.200.2.38 . But my doubt is the xorp router is receving the igmp packets from private nic card i.e in eth1 .
> So from eth1 how will it pass the info to eth0. ( is the interface definitions in config.boot will take care ? ).
>
> I have followed the below config.boot only ( which is already in this thread ) except adding the static-rps and register_vif in the pimsm4 and mfea4
>
> Thanks for all your support till now.
>
> regards
> kanth
>
>
>
>
>
> ________________________________
> From: Pavlin Radoslavov <pavlin at ICSI.Berkeley.EDU>
> To: RamaKanthVarala <varala_kanth at yahoo.com>
> Cc: Pavlin Radoslavov <pavlin at ICSI.Berkeley.EDU>; xorp-users at xorp.org
> Sent: Tuesday, 24 March, 2009 10:56:23 PM
> Subject: Re: [Xorp-users] compilation problmes with mips
>
> Kanth,
>
> Currently XORP doesn't have the mechanism to control the range of
> the multicast addresses you need.
> This is a valid request that XORP should have such mechanism, hence
> please submit a Bugzilla entry so we can track it.
>
> In the mean time you would have to use iptables to apply the
> filtering you need.
>
> BTW, in your config you should have interface/vif entry for
> "register_vif" in both the mfea4 and pimsm4 sections.
>
> Regards,
> Pavlin
>
> RamaKanthVarala <varala_kanth at yahoo.com> wrote:
>
> > Hi Pavlin,
> >
> > I could able to increase the number of multicast seesions by following the ERRATA document.
> >
> > Still iam looking for the following configuration.
> >
> > to control only the specific multicast range addresses ?
> >
> > I followed your comments but still not with much sucess.
> >
> > Let me explaing my testing environment and my requirement.
> >
> > Windows PC ==> WAN =eth0==> Xorp Router(Fedora 8 Machine) =eth1==> LAN ==> Windows PC
> >
> > Fedora Machine has two N IC cards
> >
> > 1. eth0 with public ip Wan interface
> > 2. eth1 with lan interface.
> >
> > Now what iam trying to do is.
> >
> > 1) i want to limit my xorp router to allow only 239.1.1.0/26 i.e 239.1.1.0 to 239.1.1.127 multicast range IGMP , remaining should be discarded .
> >
> > This is both in case of server and host i.e
> >
> > 1) if my lan pc is working as receiver it should only get the stream if the range is within the above specified one.
> > 2) if my lan pc is source at that time also if it is with in the above range then only it should be allowed to muliticast.
> >
> > I think i can use iptables in implementing a firewall in order to discard the packates out side of this range, but this solution would be outside of the xorp.
> >
> > Iam trying this behavior from the xrop.
> >
> > thanks and regards
> > kanth
> >
> > Iam pasting my config.boot here .
> >
> > protocols {
> > /* fib2mrib {
> > disable: false
> > }*/
> > igmp {
> > disable: false
> > interface eth0 {
> > vif eth0 {
> > disable: false
> > version: 3
> > /*enable-ip-router-alert-option-check: false */
> > query-interval: 125
> > query-last-member-interval: 1
> > query-response-interval: 10
> > robust-count: 2
> > }
> > }
> > interface br0 {
> > vif br0 {
> > disable: false
> > version: 3
> > /*enable-ip-router-alert-option-check: false */
> > query-interval: 125
> > query-last-member-interval: 1
> > query-response-interval: 10
> > robust-count: 2
> > }
> > }
> > }
> > pimsm4 {
> > disable: false
> > interface eth0 {
> > vif eth0 {
> > disable: false
> > /*enable-ip-router-alert-option-check: false */
> > dr-priority: 1
> > hello-period: 30
> > hello-triggered-delay: 5
> > }
> > }
> > interface br0 {
> > vif br0 {
> > disable: false
> > /*enable-ip-router-alert-option-check: false */
> > dr-priority: 1
> > hello-period: 30
> > hello-triggered-delay: 5
> > }
> > }
> > static-rps {
> > rp *.*.*.38 { /* this my fedora wan ip */
> > group-prefix 239.1.1.0/26 {
> > }
> > }
> > }
> > }
> > }
> > fea {
> > unicast-forwarding4 {
> > disable: false
> > }
> > }
> > interfaces {
> > restore-original-config-on-shutdown: false
> > interface eth0 {
> > disable: false
> > discard: false
> > description: ""
> > default-system-config {
> > }
> > }
> > interface br0 {
> > disable: false
> > discard: false
> > description: ""
> > default-system-config {
> > }
> > }
> > }
> > plumbing {
> > mfea4 {
> > disable: false
> > interface eth0 {
> > vif eth0 {
> > disable: false
> > }
> > }
> > interface br0 {
> > vif br0 {
> > disable: false
> > }
> > }
> > }
> > }
> >
> >
> >
> >
> > RamaKanthVarala <varala_kanth at yahoo.com> wrote:
> >
> > > Thanks a lot pavlin,
> > >
> > > Your comments are indeed very help full for me.
> > >
> > > I could able to resolve the compilation issues. Following are my changes .
> > >
> > > 1) --wiith-LD = mips-linux-ld
> > >
> > > 2) CFLAGS = "mxgots"
> > >
> > > 3) CXXFLAGS = "mxgots"
> > >
> > > 4) Enableing the PIMSM V1, PIMSM V2 and IPIP kernal modules.
> > >
> > > With above changes i could able to run the xorp on my target board.
> > >
> > > Through testing i found that it doesnot support immedieate leave , am i right ?
> >
> > Typically there is few seconds latency when a receiver leaves a
> > multicast group, because of the way IGMP works..
> >
> > > To supports this do i need change any thing in config.boot ?
> >
> > Please see rtrmgr/config/multicast4.boot for a sample configuration
> > file for multicast routing. Also, see the XORP User Manual for
> > detail description of the configuration statements.
> >
> > > How many minimum number of multicast groups it can support ?
> >
> > I presume you mean "maximum" instead of "minimum".
> > I believe for Linux the default max. value is 20 groups (per
> > interface?).
> > See the MLD/IGMP and PIM-SM sections in the xorp/ERRATA file for
> > hints if you need to increase that number.
> >
> > > Do we have any control like on the specific interface we can allow only the specific multicast range addresses ?
> >
> > Currently the only control is by specifying the group prefix per
> > static-rp or for the bootstrap mechanism.
> > Please add a feature request to Bugzilla for per-interface address
> > range control.
> >
> > Regards,
> > Pavlin
> >
> > > Please send your comments
> > >
> > > regards
> > > Kanth
> > >
> > > ________________________________
> > > From: Pavlin Radoslavov <pavlin at ICSI.Berkeley.EDU>
> > > To: RamaKanthVarala <varala_kanth at yahoo.com>
> > > Cc: Pavlin Radoslavov <pavlin at ICSI.Berkeley..EDU>; xorp-users at xorp.org
> > > Sent: Friday, 20 March, 2009 11:10:48 PM
> > > Subject: Re: [Xorp-users] compilation problmes with mips
> > >
> > > Kanth,
> > >
> > > Before I try to answer your questions I'd like to emphasize that if
> > > you want to use XORP for multicast routing, you MUST use PIM-SM
> > > (i.e., IGMP only is not enough).
> > >
> > > RamaKanthVarala <varala_kanth at yahoo..com> wrote:
> > >
> > > > Thanks pavlin,
> > > >
> > > >
> > > > Iam using the latest stable version 1.6 .
> > > >
> > > > My testing environment is like below
> > > >
> > > > Windows PC (server )====WAN ===> Fedor 8 Linux PC =====Private Lan ===> Windows PC (client/host)
> > > >
> > > > When i compile the source with fedora 8 version i did not had any problems.
> > > >
> > > > In linux pc iam using the iptables to give me the NAT functionality to windows PC .
> > > >
> > > > In this when i compiled for fedora 8 and tested it , the video stream is received by the client PC from server PC in short it gave me the expected result ..
> > > >
> > > > As same like above now my target board with mips on it is between server and client instead of fedora Linux PC.
> > > >
> > > > My intention is to get the same result what i got with the linux pc.I hope i can achive the same ..!
> > > >
> > > > My basic obstacles till now is
> > > >
> > > >
> > > > 1) Compilation problems in the BGP and FEA modules..?
> > >
> > > The error you are seeing ("... is not a valid libtool object")
> > > doesn't indicate an obvious issue. Here are few things that you can
> > > try:
> > > * Start with a clean source and build tree
> > >
> > > * Don't use parallel make like "gmake -j4" in case you are. You
> > > could try "gmake -j1", but I think "-j1" is the default anyway.
> > >
> > > * Double-check that your cross-compilation environment is setup
> > > properly (e.g.., try to cross-compile other software that you know
> > > can be cross-compiled).
> > >
> > > * Try using "--enable-static --disable-shared" argument to ./configure
> > >
> > > * Try using older XORP release (e.g., XORP-1.5).
> > >
> > > > 2) Do they really need to be compiled in order to use igmp ..?
> > >
> > > For multicast you need (at least) the following processes/modules:
> > > fea/mfea, igmp, rib, fib2mrib, pim..
> > >
> > > Depends on the setup, you might need some unicast routing protocols
> > > as well (unless all unicast routes are static and installed outside
> > > of XORP).
> > >
> > > > 3) What are all the modules does igmp depend on ..?
> > >
> > > igmp itself depends only on fea/mfea, but as I mentioned before you
> > > must run pim.
> > >
> > > Regards,
> > > Pavlin
> > >
> > > > Please put in your thoughts .
> > > >
> > > > Thanks & Regards
> > > > Kanth
> > > >
> > > > ________________________________
> > > > From: Pavlin Radoslavov <pavlin at ICSI.Berkeley.EDU>
> > > > To: RamaKanthVarala <varala_kanth at yahoo.com>
> > > > Cc: xorp-users at xorp.org
> > > > Sent: Tuesday, 17 March, 2009 10:40:25 PM
> > > > Subject: Re: [Xorp-users] compilation problmes with mips
> > > >
> > > > RamaKanthVarala <varala_kanth at yahoo.com> wrote:
> > > >
> > > > > Hello friends,
> > > > >
> > > > > I want to use the xorp as igmp proxy.
> > > >
> > > > Unfortunately you can't use XORP as IGMP proxy.
> > > > The IGMP implementation in XORP is the router-side, and it is used
> > > > in tandem with PIM-SM.
> > > >
> > > > Re. the "libtool object" error below, what XORP version are you
> > > > using? The latest 1.6 release or the code from CVS?
> > > >
> > > > Regards,
> > > > Pavlin
> > > >
> > > > > I want to put this into one of my target board which has mips as its o.s.
> > > > >
> > > > > I configured with options like host as mips-linux and --with-openssl to corresponding package.
> > > > >
> > > > > When i make it i get the following error.
> > > > >
> > > > > /bin/sh ../../../libtool --tag=CXX --mode=link mips-linux-g++ -g -Werror -W -Wall -Wwrite-strings -Wcast-qual -Wpointer-arith -Wcast-align -Woverloaded-virtual -ftemplate-depth-25 -pipe -o libxorp_fibconfig.la fibconfig_entry_get_click.lo fibconfig_entry_get_dummy.lo fibconfig_entry_get_iphelper.lo fibconfig_entry_get_netlink_socket.lo fibconfig_entry_get_routing_socket.lo fibconfig_entry_get_rtmv2.lo fibconfig_entry_observer_dummy.lo fibconfig_entry_observer_iphelper.lo fibconfig_entry_observer_netlink_socket.lo fibconfig_entry_observer_routing_socket.lo fibconfig_entry_observer_rtmv2.lo fibconfig_entry_parse_netlink_socket.lo fibconfig_entry_parse_routing_socket.lo fibconfig_entry_set_click.lo fibconfig_entry_set_dummy.lo fibconfig_entry_set_iphelper.lo fibconfig_entry_set_netlink_socket.lo fibconfig_entry_set_routing_socket...lo fibconfig_entry_set_rtmv2.lo fibconfig_forwarding_dummy.lo fibconfig_forwarding_proc_linux.lo
> > > > > fibconfig_forwarding_solaris.lo fibconfig_forwarding_sysctl.lo fibconfig_forwarding_windows.lo fibconfig_table_get_click.lo fibconfig_table_get_dummy..lo fibconfig_table_get_iphelper.lo fibconfig_table_get_netlink_socket.lo fibconfig_table_get_sysctl.lo fibconfig_table_observer_dummy.lo fibconfig_table_observer_iphelper.lo fibconfig_table_observer_netlink_socket.lo fibconfig_table_observer_routing_socket.lo fibconfig_table_observer_rtmv2.lo fibconfig_table_parse_netlink_socket.lo fibconfig_table_parse_routing_socket.lo fibconfig_table_set_click.lo fibconfig_table_set_dummy.lo fibconfig_table_set_iphelper.lo fibconfig_table_set_netlink_socket.lo fibconfig_table_set_routing_socket.lo fibconfig_table_set_rtmv2..lo -lcrypto -L/root/SW/userapps/opensource/openssl -L/root/SW/userapps/opensource/openssl/lib -lrt
> > > > > libtool: link: `fibconfig_forwarding_proc_linux.lo' is not a valid libtool object
> > > > > make: *** [libxorp_fibconfig.la] Error 1
> > > > >
> > > > >
> > > > > Another general doubt is what are all the components needed for igmp to work ..
> > > > >
> > > > > If i donot include fea and ospf does it work..?
> > > > >
> > > > > Your help will be highly appreciated in this.
> > > > >
> > > > > regards
> > > > > Kanth
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