DHCP VRF-aware relay: better diagram, device configurations

DHCP/vrf-relay/README.md

@@ -2,7 +2,7 @@
 
 This directory contains *netlab* topology file for a simple VRF-aware DHCP relaying scenario.
 
-![DHCP relaying topology](dhcp-relay.png)
+![DHCP relaying topology](vrf-dhcp-relay.png)
 
 After starting the lab, the *user* device should get DHCP-assigned IP address on its lab-facing interface.
 

DHCP/vrf-relay/config/relay.cfg

@@ -0,0 +1,160 @@
+!
+! Last configuration change at 11:15:29 UTC Sat Mar 11 2023 by vagrant
+!
+version 15.6
+service timestamps debug datetime msec
+service timestamps log datetime msec
+no service password-encryption
+!
+hostname relay
+!
+boot-start-marker
+boot-end-marker
+!
+!
+vrf definition MGMT
+ description Management interface
+ !
+ address-family ipv4
+ exit-address-family
+!
+vrf definition client
+ rd 65000:1
+ route-target export 65000:1
+ route-target import 65000:1
+ !
+ address-family ipv4
+ exit-address-family
+!
+!
+aaa new-model
+!
+!
+aaa authentication login default local
+aaa authorization exec default local 
+!
+!
+!
+!
+!
+aaa session-id common
+ethernet lmi ce
+!
+!
+!
+mmi polling-interval 60
+no mmi auto-configure
+no mmi pvc
+mmi snmp-timeout 180
+!
+!
+!
+!
+!
+!
+!
+!
+ip dhcp relay information option vpn
+!
+!
+!
+no ip domain lookup
+ip domain name lab.local
+ip host srv 10.0.0.1 10.1.0.2
+ip host user 10.0.0.3 172.16.0.3
+ip cef
+no ipv6 cef
+!
+multilink bundle-name authenticated
+!
+!
+!
+!
+username vagrant privilege 15 secret 5 $1$2Z2t$pXLik1OzWFWpn6CGRMkhS0
+!
+redundancy
+!
+lldp run
+!
+! 
+!
+!
+!
+!
+!
+!
+!
+!
+!
+!
+!
+!
+interface Loopback0
+ ip address 10.0.0.2 255.255.255.255
+ ip ospf 1 area 0.0.0.0
+!
+interface GigabitEthernet0/0
+ description vagrant-management
+ vrf forwarding MGMT
+ ip address dhcp
+ duplex auto
+ speed auto
+ media-type rj45
+ no lldp transmit
+ no lldp receive
+!
+interface GigabitEthernet0/1
+ description relay -> srv
+ ip address 10.1.0.1 255.255.255.252
+ ip ospf network point-to-point
+ ip ospf 1 area 0.0.0.0
+ duplex auto
+ speed auto
+ media-type rj45
+!
+interface GigabitEthernet0/2
+ description relay -> user
+ vrf forwarding client
+ ip address 172.16.0.2 255.255.255.0
+ ip helper-address global 10.0.0.1
+ duplex auto
+ speed auto
+ media-type rj45
+!
+router ospf 1
+ router-id 10.0.0.2
+!
+ip forward-protocol nd
+!
+!
+no ip http server
+no ip http secure-server
+ip ssh version 2
+ip ssh pubkey-chain
+  username vagrant
+   key-hash ssh-rsa DD3BB82E850406E9ABFFA80AC0046ED6 
+!
+!
+!
+!
+!
+!
+control-plane
+!
+!
+line con 0
+line aux 0
+line vty 0 4
+ transport input ssh
+!
+no scheduler allocate
+event manager applet ENABLE-MGMT
+ event syslog pattern "SYS-5-RESTART"
+ action 0 cli command "enable"
+ action 1 cli command "conf t"
+ action 2 cli command "crypto key generate rsa modulus 2048"
+ action 3 cli command "interface GigabitEthernet0/0"
+ action 4 cli command "no shutdown"
+ action 5 cli command "exit"
+!
+end