diff --git a/cord-single-playbook.yml b/cord-single-playbook.yml
index 0e28450..f92f073 100644
--- a/cord-single-playbook.yml
+++ b/cord-single-playbook.yml
@@ -17,12 +17,12 @@
   roles:
     - common-prep
     - cloudlab-prep
-    - apt-cacher-ng
 
-- name: DNS Server Setup
+- name: Cache and DNS Server Setup
   hosts: head
   become: yes
   roles:
+    - apt-cacher-ng
     - dns-nsd
     - dns-unbound
 
diff --git a/roles/simulate-fabric/defaults/main.yml b/roles/simulate-fabric/defaults/main.yml
index 968f6d9..b038889 100644
--- a/roles/simulate-fabric/defaults/main.yml
+++ b/roles/simulate-fabric/defaults/main.yml
@@ -3,12 +3,35 @@
 
 simfabric_bridges:
   - name: databr
-    ipaddr: "10.168.0.1/24"
-    nat: True
+    addresses:
+      - "10.168.0.1/24"
+      - "10.168.1.1/24"
     interfaces:
       - veth0
 
+simfabric_links:
+  - name: veth
+    mac: "02:42:0a:a8:00:01"
+
 simfabric_interfaces:
   - veth0
   - veth1
 
+simfabric_iptables:
+  - table: nat
+    chain: POSTROUTING
+    source: "10.168.0.0/16"
+    dest: "! 10.168.0.0/16"
+    jump: MASQUERADE
+
+simfabric_sysctl:
+  - name: net.ipv4.ip_forward
+    value: 1
+  - name: net.ipv4.conf.all.send_redirects
+    value: 0
+  - name: net.ipv4.conf.default.send_redirects
+    value: 0
+  - name: net.ipv4.conf.eth0.send_redirects
+    value: 0
+  - name: net.ipv4.conf.databr.send_redirects
+    value: 0
diff --git a/roles/simulate-fabric/files/simulate-fabric-playbook.yml b/roles/simulate-fabric/files/simulate-fabric-playbook.yml
index 9ff2345..6a99712 100644
--- a/roles/simulate-fabric/files/simulate-fabric-playbook.yml
+++ b/roles/simulate-fabric/files/simulate-fabric-playbook.yml
@@ -21,3 +21,45 @@
       command: brctl addbr "{{ item.name }}"
       with_items: "{{ simfabric_bridges }}"
 
+    - name: Set IP addresses to bridges
+      when: "ansible_{{ item.0.name }} is not defined"
+      command: "ip addr add {{ item.1 }} dev {{ item.0.name }}"
+      with_subelements:
+       - "{{ simfabric_bridges }}"
+       - addresses
+
+    - name: Start bridges
+      when: "ansible_{{ item.name }}.active is false"
+      command: "ip link set dev {{ item }} up"
+      with_items: "{{ simfabric_bridges }}"
+
+    - name: Create ip links
+      when: "ansible_{{ item.name }}0 is not defined"
+      command: "ip link add address {{ item.mac }} type {{ item.name }}"
+      with_items: "{{ simfabric_links }}"
+
+    - name: Start interfaces
+      when: "ansible_{{ item.name }}.active is false"
+      command: "ip link set dev {{ item }} up"
+      with_items: "{{ simfabric_interfaces }}"
+
+    - name: Add interfaces to bridges
+      when: "ansible_{{ item.0.name }}.interfaces is empty"
+      command: "brctl addif {{ item.0.name }} {{ item.1 }}"
+      with_subelements:
+       - "{{ simfabric_bridges }}"
+       - interfaces
+
+    - name: Configure iptables
+      iptables: "table={{ item.table }} chain={{ item.chain }} source={{ item.source }} dest={{ item.dest }} jump={{ item.jump }}"
+      with_items: "{{ simfabric_iptables }}"
+
+    - name: Set kernel sysctl values
+      sysctl:
+        name="{{ item.name }}"
+        value="{{ item.value }}"
+        sysctl_set=yes
+        state=present
+        reload=yes
+      with_items: "{{ simfabric_sysctl }}"
+
diff --git a/roles/simulate-fabric/templates/simulate-fabric-vars.yml.j2 b/roles/simulate-fabric/templates/simulate-fabric-vars.yml.j2
index b129297..599443f 100644
--- a/roles/simulate-fabric/templates/simulate-fabric-vars.yml.j2
+++ b/roles/simulate-fabric/templates/simulate-fabric-vars.yml.j2
@@ -3,6 +3,15 @@
 simfabric_bridges:
 {{ simfabric_bridges | to_nice_yaml }}
 
+simfabric_links:
+{{ simfabric_links | to_nice_yaml }}
+
 simfabric_interfaces:
 {{ simfabric_interfaces | to_nice_yaml }}
 
+simfabric_iptables:
+{{ simfabric_iptables | to_nice_yaml }}
+
+simfabric_sysctl:
+{{ simfabric_sysctl | to_nice_yaml }}
+