NETCONFを使ってOSPFを行う
ルーターのL3IPは事前に設定済み
R3とR4はすでに設定済みでOSPFが稼働済み
PythonプログラムでCSR1とCSR2を設定する
ncclientライブラリを使う
デバイス名.xmlファイルを使う
プログラム実行時にCSR1とCSR2はすべてのルーターとOSPFを形成
ルーター設定
IOS-XE1
hostname IOS-XE1
ip domain-name abc.com
crypto key generate rsa module 1024
ip ssh version 2
username admin privilege 15 password cisco
netconf ssh
netconf-yang
line vty 0 4
login local
transport input all
int gi1
ip address 10.255.1.101 255.255.255.0
description Connect to MGMT
no shut
int gi2
ip address 12.0.0.1 255.255.255.0
description Connect to IOS-XE2
no shut
int gi3
ip address 13.0.0.1 255.255.255.0
description Connect to IOS3
no shut
int gi4
ip address 14.0.0.1 255.255.255.0
description Connect to IOS4
no shut
IOS-XE2
hostname IOS-XE2
ip domain-name abc.com
crypto key generate rsa module 1024
ip ssh version 2
username admin privilege 15 password cisco
netconf ssh
netconf-yang
line vty 0 4
login local
transport input all
int gi1
ip address 10.255.1.102 255.255.255.0
description Connect to MGMT
no shut
int gi2
ip address 12.0.0.2 255.255.255.0
description Connect to IOS-XE1
no shut
int gi3
ip address 24.0.0.2 255.255.255.0
description Connect to IOS4
no shut
int gi4
ip address 23.0.0.2 255.255.255.0
description Connect to IOS3
no shut
IOS3
hostname IOS3
int gi0/1
ip address 13.0.0.3 255.255.255.0
description connected to IOS-XE1
no shut
int gi0/2
ip address 23.0.0.3 255.255.255.0
description connected to IOS-XE2
no shut
router ospf 1
router-id 3.3.3.3
interface range gi0/1-2
ip ospf 1 area 0
ip ospf network point-to-point
IOS4
hostname IOS4
int gi0/1
ip address 14.0.0.4 255.255.255.0
description connected to IOS-XE1
no shut
int gi0/2
ip address 24.0.0.4 255.255.255.0
description connected to IOS-XE2
no shut
router ospf 1
router-id 4.4.4.4
interface range gi0/1-2
ip ospf 1 area 0
ip ospf network point-to-point
方針
XMLの設定ファイルをルーターに送信して設定するが、
1.そもそも設定のためのXML記法を覚えるのが面倒くさいので手動でルーターを設定し設定したルーターの設定XMLをPythonで取得する。
2.そこからOSPFの設定を抜き出して設定XMLを投げるファイルを作る。
IOS-XE1追加
router ospf 1
router-id 1.1.1.1
interface gi2
ip ospf 1 area 0
ip ospf network point-to-point
netconf_dummy.py
from ncclient import manager
from xml.dom.minidom import parseString
netconf_conn = manager.connect(
host = "10.255.1.101",
port = "830",
username = "admin",
password = "cisco",
hostkey_verify = False
)
print("NETCONF Connected...\n")
running_config = netconf_conn.get_config(source = "running")
pretty_config = parseString(running_config.xml).toprettyxml()
print(pretty_config)
実行結果
ルーターを設定し保存せずPythonを実行する
result
<?xml version="1.0" ?>
<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:579a1529-52ef-4c59-a6b1-fc2f03f58c03">
<data>
<native xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-native">
<version>16.9</version>
<boot-start-marker/>
<boot-end-marker/>
<service>
<timestamps>
<debug>
<datetime>
<msec/>
</datetime>
</debug>
<log>
<datetime>
<msec/>
</datetime>
</log>
</timestamps>
</service>
<platform>
<console xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-platform">
<output>serial</output>
</console>
</platform>
<hostname>IOS-XE1</hostname>
<username>
<name>admin</name>
<privilege>15</privilege>
<password>
<encryption>0</encryption>
<password>cisco</password>
</password>
</username>
<ip>
<domain>
<name>abc.com</name>
</domain>
<forward-protocol>
<protocol>nd</protocol>
</forward-protocol>
<ssh>
<version>2</version>
</ssh>
<http xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-http">
<authentication>
<local/>
</authentication>
<server>true</server>
<secure-server>true</secure-server>
</http>
</ip>
<interface>
<GigabitEthernet>
<name>1</name>
<description>connect to MGMT</description>
<ip>
<address>
<primary>
<address>10.255.1.101</address>
<mask>255.255.255.0</mask>
</primary>
</address>
</ip>
<mop>
<enabled>false</enabled>
<sysid>false</sysid>
</mop>
<negotiation xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ethernet">
<auto>true</auto>
</negotiation>
</GigabitEthernet>
<GigabitEthernet>
<name>2</name>
<description>connect to IOS-XE2</description>
<ip>
<address>
<primary>
<address>12.0.0.1</address>
<mask>255.255.255.0</mask>
</primary>
</address>
<ospf xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ospf">
<process-id>
<id>1</id>
<area>0</area>
</process-id>
<network>point-to-point</network>
</ospf>
</ip>
<mop>
<enabled>false</enabled>
<sysid>false</sysid>
</mop>
<negotiation xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ethernet">
<auto>true</auto>
</negotiation>
</GigabitEthernet>
<GigabitEthernet>
<name>3</name>
<description>connect to IOS3</description>
<ip>
<address>
<primary>
<address>13.0.0.1</address>
<mask>255.255.255.0</mask>
</primary>
</address>
</ip>
<mop>
<enabled>false</enabled>
<sysid>false</sysid>
</mop>
<negotiation xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ethernet">
<auto>true</auto>
</negotiation>
</GigabitEthernet>
<GigabitEthernet>
<name>4</name>
<description>connect to IOS4</description>
<ip>
<address>
<primary>
<address>14.0.0.1</address>
<mask>255.255.255.0</mask>
</primary>
</address>
</ip>
<mop>
<enabled>false</enabled>
<sysid>false</sysid>
</mop>
<negotiation xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ethernet">
<auto>true</auto>
</negotiation>
</GigabitEthernet>
</interface>
<control-plane/>
<login>
<on-success>
<log/>
</on-success>
</login>
<multilink>
<bundle-name xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ppp">authenticated</bundle-name>
</multilink>
<redundancy/>
<spanning-tree>
<extend xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-spanning-tree">
<system-id/>
</extend>
</spanning-tree>
<subscriber>
<templating/>
</subscriber>
<crypto>
<pki xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-crypto">
<trustpoint>
<id>TP-self-signed-3543432073</id>
<enrollment>
<selfsigned/>
</enrollment>
<revocation-check>none</revocation-check>
<rsakeypair>
<key-label>TP-self-signed-3543432073</key-label>
</rsakeypair>
<subject-name>cn=IOS-Self-Signed-Certificate-3543432073</subject-name>
</trustpoint>
<certificate>
<chain>
<name>TP-self-signed-3543432073</name>
<certificate>
<serial>01</serial>
<certtype>self-signed</certtype>
</certificate>
</chain>
</certificate>
</pki>
</crypto>
<router>
<ospf xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ospf">
<id>1</id>
<router-id>1.1.1.1</router-id>
</ospf>
</router>
<license>
<udi>
<pid>CSR1000V</pid>
<sn>9DIAI7TO3OF</sn>
</udi>
</license>
<line>
<console>
<first>0</first>
<stopbits>1</stopbits>
</console>
<vty>
<first>0</first>
<last>4</last>
<login>
<local/>
</login>
<transport>
<input>
<input>all</input>
</input>
</transport>
</vty>
</line>
<diagnostic xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-diagnostics">
<bootup>
<level>minimal</level>
</bootup>
</diagnostic>
</native>
<licensing xmlns="http://cisco.com/ns/yang/cisco-smart-license">
<config>
<enable>false</enable>
<privacy>
<hostname>false</hostname>
<version>false</version>
</privacy>
<utility>
<utility-enable>false</utility-enable>
</utility>
</config>
</licensing>
<interfaces xmlns="http://openconfig.net/yang/interfaces">
<interface>
<name>GigabitEthernet1</name>
<config>
<name>GigabitEthernet1</name>
<type xmlns:ianaift="urn:ietf:params:xml:ns:yang:iana-if-type">ianaift:ethernetCsmacd</type>
<description>connect to MGMT</description>
<enabled>true</enabled>
</config>
<subinterfaces>
<subinterface>
<index>0</index>
<config>
<index>0</index>
<description>connect to MGMT</description>
<enabled>true</enabled>
</config>
<ipv4 xmlns="http://openconfig.net/yang/interfaces/ip">
<addresses>
<address>
<ip>10.255.1.101</ip>
<config>
<ip>10.255.1.101</ip>
<prefix-length>24</prefix-length>
</config>
</address>
</addresses>
</ipv4>
<ipv6 xmlns="http://openconfig.net/yang/interfaces/ip">
<config>
<enabled>false</enabled>
</config>
</ipv6>
</subinterface>
</subinterfaces>
<ethernet xmlns="http://openconfig.net/yang/interfaces/ethernet">
<config>
<mac-address>50:00:00:01:00:00</mac-address>
<auto-negotiate>true</auto-negotiate>
</config>
</ethernet>
</interface>
<interface>
<name>GigabitEthernet2</name>
<config>
<name>GigabitEthernet2</name>
<type xmlns:ianaift="urn:ietf:params:xml:ns:yang:iana-if-type">ianaift:ethernetCsmacd</type>
<description>connect to IOS-XE2</description>
<enabled>true</enabled>
</config>
<subinterfaces>
<subinterface>
<index>0</index>
<config>
<index>0</index>
<description>connect to IOS-XE2</description>
<enabled>true</enabled>
</config>
<ipv4 xmlns="http://openconfig.net/yang/interfaces/ip">
<addresses>
<address>
<ip>12.0.0.1</ip>
<config>
<ip>12.0.0.1</ip>
<prefix-length>24</prefix-length>
</config>
</address>
</addresses>
</ipv4>
<ipv6 xmlns="http://openconfig.net/yang/interfaces/ip">
<config>
<enabled>false</enabled>
</config>
</ipv6>
</subinterface>
</subinterfaces>
<ethernet xmlns="http://openconfig.net/yang/interfaces/ethernet">
<config>
<mac-address>50:00:00:01:00:01</mac-address>
<auto-negotiate>true</auto-negotiate>
</config>
</ethernet>
</interface>
<interface>
<name>GigabitEthernet3</name>
<config>
<name>GigabitEthernet3</name>
<type xmlns:ianaift="urn:ietf:params:xml:ns:yang:iana-if-type">ianaift:ethernetCsmacd</type>
<description>connect to IOS3</description>
<enabled>true</enabled>
</config>
<subinterfaces>
<subinterface>
<index>0</index>
<config>
<index>0</index>
<description>connect to IOS3</description>
<enabled>true</enabled>
</config>
<ipv4 xmlns="http://openconfig.net/yang/interfaces/ip">
<addresses>
<address>
<ip>13.0.0.1</ip>
<config>
<ip>13.0.0.1</ip>
<prefix-length>24</prefix-length>
</config>
</address>
</addresses>
</ipv4>
<ipv6 xmlns="http://openconfig.net/yang/interfaces/ip">
<config>
<enabled>false</enabled>
</config>
</ipv6>
</subinterface>
</subinterfaces>
<ethernet xmlns="http://openconfig.net/yang/interfaces/ethernet">
<config>
<mac-address>50:00:00:01:00:02</mac-address>
<auto-negotiate>true</auto-negotiate>
</config>
</ethernet>
</interface>
<interface>
<name>GigabitEthernet4</name>
<config>
<name>GigabitEthernet4</name>
<type xmlns:ianaift="urn:ietf:params:xml:ns:yang:iana-if-type">ianaift:ethernetCsmacd</type>
<description>connect to IOS4</description>
<enabled>true</enabled>
</config>
<subinterfaces>
<subinterface>
<index>0</index>
<config>
<index>0</index>
<description>connect to IOS4</description>
<enabled>true</enabled>
</config>
<ipv4 xmlns="http://openconfig.net/yang/interfaces/ip">
<addresses>
<address>
<ip>14.0.0.1</ip>
<config>
<ip>14.0.0.1</ip>
<prefix-length>24</prefix-length>
</config>
</address>
</addresses>
</ipv4>
<ipv6 xmlns="http://openconfig.net/yang/interfaces/ip">
<config>
<enabled>false</enabled>
</config>
</ipv6>
</subinterface>
</subinterfaces>
<ethernet xmlns="http://openconfig.net/yang/interfaces/ethernet">
<config>
<mac-address>50:00:00:01:00:03</mac-address>
<auto-negotiate>true</auto-negotiate>
</config>
</ethernet>
</interface>
</interfaces>
<network-instances xmlns="http://openconfig.net/yang/network-instance">
<network-instance>
<name>default</name>
<config>
<name>default</name>
<type xmlns:oc-ni-types="http://openconfig.net/yang/network-instance-types">oc-ni-types:DEFAULT_INSTANCE</type>
<description>default-vrf [read-only]</description>
</config>
<tables>
<table>
<protocol xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:DIRECTLY_CONNECTED</protocol>
<address-family xmlns:oc-types="http://openconfig.net/yang/openconfig-types">oc-types:IPV4</address-family>
<config>
<protocol xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:DIRECTLY_CONNECTED</protocol>
<address-family xmlns:oc-types="http://openconfig.net/yang/openconfig-types">oc-types:IPV4</address-family>
</config>
</table>
<table>
<protocol xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:DIRECTLY_CONNECTED</protocol>
<address-family xmlns:oc-types="http://openconfig.net/yang/openconfig-types">oc-types:IPV6</address-family>
<config>
<protocol xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:DIRECTLY_CONNECTED</protocol>
<address-family xmlns:oc-types="http://openconfig.net/yang/openconfig-types">oc-types:IPV6</address-family>
</config>
</table>
<table>
<protocol xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:OSPF</protocol>
<address-family xmlns:oc-types="http://openconfig.net/yang/openconfig-types">oc-types:IPV4</address-family>
<config>
<protocol xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:OSPF</protocol>
<address-family xmlns:oc-types="http://openconfig.net/yang/openconfig-types">oc-types:IPV4</address-family>
</config>
</table>
<table>
<protocol xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:STATIC</protocol>
<address-family xmlns:oc-types="http://openconfig.net/yang/openconfig-types">oc-types:IPV4</address-family>
<config>
<protocol xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:STATIC</protocol>
<address-family xmlns:oc-types="http://openconfig.net/yang/openconfig-types">oc-types:IPV4</address-family>
</config>
</table>
<table>
<protocol xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:STATIC</protocol>
<address-family xmlns:oc-types="http://openconfig.net/yang/openconfig-types">oc-types:IPV6</address-family>
<config>
<protocol xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:STATIC</protocol>
<address-family xmlns:oc-types="http://openconfig.net/yang/openconfig-types">oc-types:IPV6</address-family>
</config>
</table>
</tables>
<protocols>
<protocol>
<identifier xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:OSPF</identifier>
<name>1</name>
<config>
<identifier xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:OSPF</identifier>
<name>1</name>
</config>
</protocol>
<protocol>
<identifier xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:STATIC</identifier>
<name>DEFAULT</name>
<config>
<identifier xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:STATIC</identifier>
<name>DEFAULT</name>
</config>
</protocol>
<protocol>
<identifier xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:DIRECTLY_CONNECTED</identifier>
<name>DEFAULT</name>
<config>
<identifier xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:DIRECTLY_CONNECTED</identifier>
<name>DEFAULT</name>
</config>
</protocol>
</protocols>
</network-instance>
</network-instances>
<interfaces xmlns="urn:ietf:params:xml:ns:yang:ietf-interfaces">
<interface>
<name>GigabitEthernet1</name>
<description>connect to MGMT</description>
<type xmlns:ianaift="urn:ietf:params:xml:ns:yang:iana-if-type">ianaift:ethernetCsmacd</type>
<enabled>true</enabled>
<ipv4 xmlns="urn:ietf:params:xml:ns:yang:ietf-ip">
<address>
<ip>10.255.1.101</ip>
<netmask>255.255.255.0</netmask>
</address>
</ipv4>
<ipv6 xmlns="urn:ietf:params:xml:ns:yang:ietf-ip"/>
</interface>
<interface>
<name>GigabitEthernet2</name>
<description>connect to IOS-XE2</description>
<type xmlns:ianaift="urn:ietf:params:xml:ns:yang:iana-if-type">ianaift:ethernetCsmacd</type>
<enabled>true</enabled>
<ipv4 xmlns="urn:ietf:params:xml:ns:yang:ietf-ip">
<address>
<ip>12.0.0.1</ip>
<netmask>255.255.255.0</netmask>
</address>
</ipv4>
<ipv6 xmlns="urn:ietf:params:xml:ns:yang:ietf-ip"/>
</interface>
<interface>
<name>GigabitEthernet3</name>
<description>connect to IOS3</description>
<type xmlns:ianaift="urn:ietf:params:xml:ns:yang:iana-if-type">ianaift:ethernetCsmacd</type>
<enabled>true</enabled>
<ipv4 xmlns="urn:ietf:params:xml:ns:yang:ietf-ip">
<address>
<ip>13.0.0.1</ip>
<netmask>255.255.255.0</netmask>
</address>
</ipv4>
<ipv6 xmlns="urn:ietf:params:xml:ns:yang:ietf-ip"/>
</interface>
<interface>
<name>GigabitEthernet4</name>
<description>connect to IOS4</description>
<type xmlns:ianaift="urn:ietf:params:xml:ns:yang:iana-if-type">ianaift:ethernetCsmacd</type>
<enabled>true</enabled>
<ipv4 xmlns="urn:ietf:params:xml:ns:yang:ietf-ip">
<address>
<ip>14.0.0.1</ip>
<netmask>255.255.255.0</netmask>
</address>
</ipv4>
<ipv6 xmlns="urn:ietf:params:xml:ns:yang:ietf-ip"/>
</interface>
</interfaces>
<nacm xmlns="urn:ietf:params:xml:ns:yang:ietf-netconf-acm">
<enable-nacm>true</enable-nacm>
<read-default>deny</read-default>
<write-default>deny</write-default>
<exec-default>deny</exec-default>
<enable-external-groups>true</enable-external-groups>
<rule-list>
<name>admin</name>
<group>PRIV15</group>
<rule>
<name>permit-all</name>
<module-name>*</module-name>
<access-operations>*</access-operations>
<action>permit</action>
</rule>
</rule-list>
</nacm>
<routing xmlns="urn:ietf:params:xml:ns:yang:ietf-routing">
<routing-instance>
<name>default</name>
<description>default-vrf [read-only]</description>
<routing-protocols>
<routing-protocol>
<type xmlns:ospf="urn:ietf:params:xml:ns:yang:ietf-ospf">ospf:ospfv2</type>
<name>1</name>
<ospf xmlns="urn:ietf:params:xml:ns:yang:ietf-ospf">
<instance>
<af xmlns:rt="urn:ietf:params:xml:ns:yang:ietf-routing">rt:ipv4</af>
<router-id>1.1.1.1</router-id>
<nsr>
<enable>false</enable>
</nsr>
<auto-cost>
<enable>false</enable>
</auto-cost>
<redistribution xmlns="urn:ietf:params:xml:ns:yang:cisco-ospf">
<rip/>
</redistribution>
</instance>
</ospf>
</routing-protocol>
<routing-protocol>
<type>static</type>
<name>1</name>
</routing-protocol>
</routing-protocols>
</routing-instance>
</routing>
</data>
</rpc-reply>
ここから設定に必要な部分を抜き出す。
必要なのはと
のOSPF設定部分
ルーティングのOSPFの設定部分
抜き出したXMLを修正してXMLファイルを作る。
みてもらえばわかるが記法が独自で１から作るのは難しい。
ios-xe1.xml
<config>
<native xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-native">
<interface>
<GigabitEthernet>
<name>2</name>
<description>connect to IOS-XE2</description>
<ip>
<address>
<primary>
<address>12.0.0.1</address>
<mask>255.255.255.0</mask>
</primary>
</address>
<ospf xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ospf">
<process-id>
<id>1</id>
<area>0</area>
</process-id>
<network>point-to-point</network>
</ospf>
</ip>
<mop>
<enabled>false</enabled>
<sysid>false</sysid>
</mop>
<negotiation xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ethernet">
<auto>true</auto>
</negotiation>
</GigabitEthernet>
<GigabitEthernet>
<name>3</name>
<description>connect to IOS-XE3</description>
<ip>
<address>
<primary>
<address>13.0.0.1</address>
<mask>255.255.255.0</mask>
</primary>
</address>
<ospf xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ospf">
<process-id>
<id>1</id>
<area>0</area>
</process-id>
<network>point-to-point</network>
</ospf>
</ip>
<mop>
<enabled>false</enabled>
<sysid>false</sysid>
</mop>
<negotiation xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ethernet">
<auto>true</auto>
</negotiation>
</GigabitEthernet>
<GigabitEthernet>
<name>4</name>
<description>connect to IOS-XE4</description>
<ip>
<address>
<primary>
<address>14.0.0.1</address>
<mask>255.255.255.0</mask>
</primary>
</address>
<ospf xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ospf">
<process-id>
<id>1</id>
<area>0</area>
</process-id>
<network>point-to-point</network>
</ospf>
</ip>
<mop>
<enabled>false</enabled>
<sysid>false</sysid>
</mop>
<negotiation xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ethernet">
<auto>true</auto>
</negotiation>
</GigabitEthernet>
</interface>
<router>
<ospf xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ospf">
<id>1</id>
<router-id>1.1.1.1</router-id>
</ospf>
</router>
</native>
</config>
ios-xe2.xml
<config>
<native xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-native">
<interface>
<GigabitEthernet>
<name>2</name>
<description>connect to IOS-XE1</description>
<ip>
<address>
<primary>
<address>12.0.0.2</address>
<mask>255.255.255.0</mask>
</primary>
</address>
<ospf xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ospf">
<process-id>
<id>1</id>
<area>0</area>
</process-id>
<network>point-to-point</network>
</ospf>
</ip>
<mop>
<enabled>false</enabled>
<sysid>false</sysid>
</mop>
<negotiation xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ethernet">
<auto>true</auto>
</negotiation>
</GigabitEthernet>
<GigabitEthernet>
<name>3</name>
<description>connect to IOS-XE4</description>
<ip>
<address>
<primary>
<address>24.0.0.2</address>
<mask>255.255.255.0</mask>
</primary>
</address>
<ospf xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ospf">
<process-id>
<id>1</id>
<area>0</area>
</process-id>
<network>point-to-point</network>
</ospf>
</ip>
<mop>
<enabled>false</enabled>
<sysid>false</sysid>
</mop>
<negotiation xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ethernet">
<auto>true</auto>
</negotiation>
</GigabitEthernet>
<GigabitEthernet>
<name>4</name>
<description>connect to IOS-XE3</description>
<ip>
<address>
<primary>
<address>23.0.0.2</address>
<mask>255.255.255.0</mask>
</primary>
</address>
<ospf xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ospf">
<process-id>
<id>1</id>
<area>0</area>
</process-id>
<network>point-to-point</network>
</ospf>
</ip>
<mop>
<enabled>false</enabled>
<sysid>false</sysid>
</mop>
<negotiation xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ethernet">
<auto>true</auto>
</negotiation>
</GigabitEthernet>
</interface>
<router>
<ospf xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-ospf">
<id>1</id>
<router-id>2.2.2.2</router-id>
</ospf>
</router>
</native>
</config>