[Xorp-users] BGP route

[Atanu Ghosh]

Hi,

Routes that are introduced via policy come via the internal peer
0.0.0.0. The route will have the AS number of the router added to AS
path when the route is sent to a peer.

     Atanu.

>>>>> "aizuddin" == aizuddin ariffin <amaizuddin at yahoo.com> writes:

    aizuddin> Thanks for the interface advice.Then about the output
    aizuddin> of show bgp route.Why the peer is 0.0.0.0 and AS path
    aizuddin> is not 33333 as I configured before.Could you show me
    aizuddin> the right way to configure it.

    aizuddin> Thanks.
    aizuddin> ----------------------------------------------------------------------
    >> 
    >> Message: 1
    >> Date: Tue, 25 Mar 2008 10:41:07 -0700 (PDT)
    >> From: aizuddin ariffin <amaizuddin at yahoo.com>
    >> Subject: [Xorp-users] BGP route
    >> To: xorp-users at xorp.org
    >> Message-ID:
    >> <275830.90421.qm at web90301.mail.mud.yahoo.com>
    >> Content-Type: text/plain; charset="iso-8859-1"
    >> 
    >> 
    >> Hi all.Can anyone help me check my BGP
    >> configuration?
    >> Here is my configuration.This is my first time using
    >> XORP and hope anyone can help me.
    >> Thanks.
    >> 
    >> interfaces {
    >> interface eth0 {
    >> description: "data interface"
    >> vif eth0 {
    >> address 172.16.0.0 {
    >> prefix-length: 24
    >> broadcast: 172.16.0.255
    >> }
    >> }
    >> }
    >> }
    >> 
    >> fea {
    >> unicast-forwarding4 {
    >> disable: true
    >> } 
    >> }
    >> 
    >> policy {
    >> policy-statement export-connected {
    >> term 100 {
    >> from {
    >> protocol:"connected"
    >> network4: 172.16.0.0/24      
    >> }
    >> to   { 
    >> neighbor: 172.16.1.0
    >> }
    >> 
    >> then { 
    >> nexthop4: 172.16.1.0
    >> accept
    >> }
    >> }
    >> }
    >> }
    >> 
    >> protocols {
    >> bgp {
    >> bgp-id: 172.16.0.0
    >> local-as: 33333
    >> export: "export-connected" 
    >> 
    >> peer 172.16.1.0 {
    >> local-ip: 172.16.0.0
    >> as: 33334
    >> next-hop: 172.16.1.0
    >> 
    >> local-port: 179
    >> peer-port: 179
    >> holdtime: 120
    >> 
    >> }
    >> 
    >> peer 172.16.2.0 {
    >> local-ip: 172.16.0.0
    >> as: 33335
    >> next-hop: 172.16.2.0
    >> 
    >> local-port: 179
    >> peer-port: 179
    >> holdtime: 120
    >> 
    >> }
    >> 
    >> peer 172.16.3.0 {
    >> local-ip: 172.16.0.1
    >> as: 33336
    >> next-hop: 172.16.3.0
    >> local-port: 179
    >> peer-port: 179
    >> holdtime: 120
    >> 
    >> ipv4-unicast: true
    >> 
    >> 
    >> } 
    >> 
    >> 
    >> }
    >> }
    >> 
    >> Here is my BGP output.
    >> 
    >> root at debian> show bgp routes
    >> Status Codes: * valid route, > best route
    >> Origin Codes: i IGP, e EGP, ? incomplete
    >> 
    >> Prefix             Nexthop     Peer       AS Path
    >> *> 172.16.0.0/24  172.16.0.0  0.0.0.0        i
    >> 
    >> The output look something wrong to me though.
    >> Can anyone help me solve this problem.Thanks.
    >> 
    >> 
    >> ---------------------------------
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    >> 
    >> ------------------------------
    >> 
    >> Message: 2
    >> Date: Tue, 25 Mar 2008 11:05:01 -0700
    >> From: Atanu Ghosh <atanu at ICSI.Berkeley.EDU>
    >> Subject: Re: [Xorp-users] BGP route
    >> To: aizuddin ariffin <amaizuddin at yahoo.com>
    >> Cc: xorp-users at xorp.org
    >> Message-ID: <59130.1206468301 at tigger.icir.org>
    >> 
    >> Hi,
    >> 
    >> The output of "show bgp routes" looks fine assuming
    >> that you have not
    >> formed any peerings, or that the peers are not
    >> sending any routes.
    >> 
    >> Atanu.
    >> 
    >> >>>>> "aizuddin" == aizuddin ariffin
    >> <amaizuddin at yahoo.com> writes:
    >> 
    aizuddin> Hi all.Can anyone help me check my BGP
    >> configuration?
    aizuddin> Here is my configuration.This is my
    >> first time using
    aizuddin> XORP and hope anyone can help me.
    aizuddin> Thanks.
    aizuddin> interfaces {
    aizuddin> interface eth0 {
    aizuddin> description: "data interface"
    aizuddin> vif eth0 {
    aizuddin> address 172.16.0.0 {
    aizuddin> prefix-length: 24
    aizuddin> broadcast: 172.16.0.255
    aizuddin> }
    aizuddin> }
    aizuddin> }
    aizuddin> }
    aizuddin> fea {
    aizuddin> unicast-forwarding4 {
    aizuddin> disable: true
    aizuddin> } 
    aizuddin> }
    aizuddin> policy {
    aizuddin> policy-statement export-connected {
    aizuddin> term 100 {
    aizuddin> from {
    aizuddin> protocol:"connected"
    aizuddin> network4: 172.16.0.0/24      
    aizuddin> }
    aizuddin> to   { 
    aizuddin> neighbor: 172.16.1.0
    aizuddin> }
    >> 
    aizuddin> === message truncated ===



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