[Xorp-users] Multicast over GRE tunnel between Cisco and Ubuntu 11.10

[Ben Greear]

On 01/10/2012 05:56 AM, Thiago Anderson wrote:
>
>     Cisco                                                       Linux
> 10.244.0.1/32 <http://10.244.0.1/32> -------------------[ipsec]---------------------- 10.244.249.117
> 10.244.229.221/30 <http://10.244.229.221/30> ---------------[ gre ] --------------------- 10.244.229.222/30 <http://10.244.229.222/30>
> 10.244.0.0/24 <http://10.244.0.0/24> ------------------------------------------------------ 10.245.6.240/28 <http://10.245.6.240/28>
>
> I have a tunnel as above, where gw ipsec - gw and a gre to pass multicast and unicast.
> Unicast is ok, and works through the normal conecoes tcp / ping.
>
> I'm trying to configure the XORP to be able to forward multicast but still unable to deliver the join the group through the GRE tunnel.
>
> Below is the configuration of the XORP:

Make sure you are using Xorp 1.8.5-WIP (HEAD tag from github).  It fixes
some bugs since the last release...I'll be doing a new official 1.8.5 release
within the next week or two.

Thanks,
Ben

>
> **** My home network is on eth2 and gre tunnel is named Bovespa ****
>
>
> rtrmgr {
> config-directory: "/etc/xorp"
> }
>
> interfaces {
> interface eth2 {
> description: "upstream interface"
> disable:false
> default-system-config
> vif eth2 {
> address 10.245.6.241 {
> prefix-length:28
> multicast-capable: true
> }
> }
> }
>
> interface bovespa {
> description: "downstream interface"
> disable: false
> default-system-config
> vif bovespa {
> address 10.245.6.222 {
> prefix-length:30
> multicast-capable: true
> }
> }
> }
>
> }
>
> plumbing {
> mfea4 {
> disable: false
> interface eth2 {
> vif eth2 {
> disable: false
> }
> }
>
> interface bovespa {
> vif bovespa {
> disable: false
> }
> }
> interface register_vif {
> vif register_vif {
> /* Note: this vif should be always enabled */
> disable: false
> }
> }
> traceoptions {
> flag all {
> disable: false
> }
> }
> }
> }
> protocols {
>
> igmp {
> disable: false
> interface eth2 {
> vif eth2 {
> disable: false
> }
> }
>
> interface bovespa {
> vif bovespa {
> disable: false
> }
> }
>
> traceoptions {
> flag all {
> disable: false
> }
> }
> }
>
> pimsm4 {
> disable: false
> interface eth2 {
> vif eth2 {
> disable: false
> }
> }
>
> interface bovespa {
> vif bovespa {
> disable: false
> }
> }
>
> interface register_vif {
> vif register_vif {
> /* Note: this vif should be always enabled */
> disable: false
> }
> }
>
> static-rps {
> rp 10.244.0.10 {
> group-prefix 233.111.180.96/27 <http://233.111.180.96/27> {
> /* rp-priority: 192 */
> }
> group-prefix 233.111.180.128/27 <http://233.111.180.128/27> {
> /* rp-priority: 192 */
> }
> }
> }
>
> bootstrap {
> disable: false
> cand-bsr {
> scope-zone 233.111.180.96/27 <http://233.111.180.96/27> {
> cand-bsr-by-vif-name: "bovespa"
> bsr-priority: 1
> hash-mask-len: 30
> }
> }
> cand-rp {
> group-prefix 233.111.180.96/27 <http://233.111.180.96/27> {
> cand-rp-by-vif-name: "bovespa"
> rp-priority: 192
> rp-holdtime: 150
> }
> }
> }
>
>
> traceoptions {
> flag all {
> disable: false
> }
> }
> }
> fib2mrib {
> disable: false
> }
> }
>
>
> **********************
> root at gw> show pim neighbors
> Interface    DRpriority NeighborAddr    V Mode   Holdtime Timeout
>
>
> **********************
>
> root at fw-neppo> show igmp group
> Interface    Group           Source          LastReported Timeout V State
> eth2         233.111.180.97  0.0.0.0         10.245.6.242     198 2     E
> eth2         233.111.180.98  0.0.0.0         10.245.6.242     205 2     E
> eth2         233.111.180.99  0.0.0.0         10.245.6.242     201 2     E
> eth2         233.111.180.100 0.0.0.0         10.245.6.242     205 2     E
>
>
> Thank for replay.
>
> Thiago.
>
>
>
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-- 
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com