核心。如何通过多个路由器进行路由

Question

在C.O.R.E. 4.8我无法跟踪从连接到一个路由器（r1）的主机（h1）到另一路由器（r2）上的另一主机（h2）的路由。两个路由器已连接。像这样： h1 <-> r1 <-> r2 <-> h2

我尝试在路由器上使用OSPF和RIP服务，但我不知道如何正确配置它们。

也许不相关，但是在路由器上运行的所有服务都显示以下错误消息：

DATE: Mon May 13 14:54:45 2019
LEVEL: ERROR (2)
NODE: 1 (n1)
SESSION: 38179
SOURCE: service:zebra

validate command failed: pidof zebra

我希望数据包将从h1转发到h2。发生的情况是找不到h2。两个路由器之间的Ping和traceroute有效，但是终端窗口显示：

Couldn't highlight next hop: 10.0.1.1
Couldn't highlight next hop: 10.0.1.2

如果您对此感兴趣，请参见以下网络代码：

node n1 {
    type router
    model router
    network-config {
    hostname n1
    !
    interface eth1
     ip address 10.0.1.1/24
     ipv6 address 2001:1::1/64
    !
    interface eth0
     ip address 10.0.0.1/24
     ipv6 address 2001:0::1/64
    !
    }
    canvas c1
    iconcoords {110.0 110.0}
    labelcoords {110.0 142.0}
    interface-peer {eth0 n3}
    interface-peer {eth1 n2}
}

node n2 {
    type router
    model router
    network-config {
    hostname n2
    !
    interface eth1
     ip address 10.0.2.1/24
     ipv6 address 2001:2::1/64
    !
    interface eth0
     ip address 10.0.1.2/24
     ipv6 address 2001:1::2/64
    !
    }
    canvas c1
    iconcoords {418.0 110.0}
    labelcoords {418.0 142.0}
    interface-peer {eth0 n1}
    interface-peer {eth1 n4}
}

node n3 {
    type router
    model PC
    network-config {
    hostname n3
    !
    interface eth0
     ip address 10.0.0.20/24
     ipv6 address 2001:0::20/64
    !
    }
    canvas c1
    iconcoords {65.0 342.0}
    labelcoords {65.0 374.0}
    interface-peer {eth0 n1}
}

node n4 {
    type router
    model PC
    network-config {
    hostname n4
    !
    interface eth0
     ip address 10.0.2.20/24
     ipv6 address 2001:2::20/64
    !
    }
    canvas c1
    iconcoords {304.0 361.0}
    labelcoords {304.0 393.0}
    interface-peer {eth0 n2}
}

link l1 {
    nodes {n3 n1}
    bandwidth 0
}

link l2 {
    nodes {n1 n2}
    bandwidth 0
}

link l3 {
    nodes {n2 n4}
    bandwidth 0
}

canvas c1 {
    name {Canvas1}
}

option global {
    interface_names no
    ip_addresses yes
    ipv6_addresses no
    node_labels yes
    link_labels yes
    show_api no
    background_images no
    annotations yes
    grid yes
    traffic_start 0
}

option session {
}