Technical data

130 ServerIron ADX NAT64 Configuration Guide
53-1002444-02
IP NAT redundancy
7
DRAFT: BROCADE CONFIDENTIAL
The server router-ports command enables the ServerIron ADX to count the number of
upstream (or downstream) router ports connected to the device.
3. Identify the inside and outside networks and assign them to different VLANs. VRRP-E requires
the interface on which you configure a virtual router ID (VRID) to have an IP interface that is in
the same subnet as the VRID address.
ServerIronADX(config)# vlan 100
ServerIronADX(config-vlan-100)# untagged ethernet 1/1
ServerIronADX(config-vlan-100)# router-interface ve 1
ServerIronADX(config-vlan-100)# exit
ServerIronADX(config)# vlan 200
ServerIronADX(config-vlan-200)# untagged ethernet 1/2
ServerIronADX(config-vlan-200)# router-interface ve 2
ServerIronADX(config-vlan-200)# exit
ServerIronADX-A(config)# interface ve 1
ServerIronADX-A(config-ve-1)# 10.10.20.2 255.255.255.0
ServerIronADX-A(config-ve-1)# ip nat outside
ServerIronADX-A(config-ve-1)# exit
ServerIronADX-A(config)# interface ve 2
ServerIronADX-A(config-ve-2)# 10.10.10.2 255.255.255.0
ServerIronADX-A(config-ve-2)# ip nat inside
ServerIronADX-A(config-ve-2)# exit
ServerIronADX-B(config)# interface ve 1
ServerIronADX-B(config-ve-1)# 10.10.20.4 255.255.255.0
ServerIronADX-B(config-ve-1)# ip nat outside
ServerIronADX-B(config-ve-1)# exit
ServerIronADX-B(config)# interface ve 2
ServerIronADX-B(config-ve-2)# 10.10.10.4 255.255.255.0
ServerIronADX-B(config-ve-2)# ip nat inside
ServerIronADX-B(config-ve-2)# exit
4. Configure the static NAT entries on each ServerIron ADX, and assign device ownerships to the
NAT entries. In this example, ServerIron ADX A is assigned as the NAT owner, and therefore
takes the higher priority value:
SI_A(config)# ip nat inside source static 10.10.1.100 10.20.1.100 2
SI_A(config)# ip nat inside source static 10.10.1.101 10.20.1.101 2
SI_A(config)# ip nat inside source static 10.10.1.102 10.20.1.102 2
SI_A(config)# ip nat inside source static 10.10.1.103 10.20.1.103 2
SI_B(config)# ip nat inside source static 10.10.1.100 10.20.1.100 1
SI_B(config)# ip nat inside source static 10.10.1.101 10.20.1.101 1
SI_B(config)# ip nat inside source static 10.10.1.102 10.20.1.102 1
SI_B(config)# ip nat inside source static 10.10.1.103 10.20.1.103 1
5. Configure the VRRP-E parameters. The IP address configured with the ip-address command is
the address that will be backed up by VRRP-E. The track-port commands enable tracking on
the interfaces on the other side of the ServerIron ADX that complete the link for the VRID. For
example, traffic that is addressed to VRID 1 enters the ServerIron ADX through VE interface 1
and leaves the ServerIron ADX through VE interface 2. Under normal circumstances, if VE
interface 2 goes down, VRID 1 remains active. When you track interfaces for a VRID, if the
state of one of the tracked interfaces changes, the ServerIron ADX associates the change with
the VRID interface. For example, if virtual routing interface 2 goes down, the ServerIron ADX