diff --git a/roles/network/templates/gateway/iiab-gen-iptables b/roles/network/templates/gateway/iiab-gen-iptables
index 812fe1b39..fdd91f56d 100755
--- a/roles/network/templates/gateway/iiab-gen-iptables
+++ b/roles/network/templates/gateway/iiab-gen-iptables
@@ -58,6 +58,8 @@ calibre_port={{ calibre_port }}
 kiwix_port={{ kiwix_port }}
 kalite_server_port={{ kalite_server_port }}
 kolibri_http_port={{ kolibri_http_port }}
+transmission_http_port={{ transmission_http_port }}
+transmission_peer_port={{ transmission_peer_port }}
 sugarizer_port={{ sugarizer_port }}
 block_DNS={{ block_DNS }}
 captive_portal_enabled={{ captive_portal_enabled }}
@@ -94,6 +96,8 @@ if [ "$services_externally_visible" == "True" ]; then
     $IPTABLES -A INPUT -p tcp --dport $kolibri_http_port -m state --state NEW -i $wan -j ACCEPT
     $IPTABLES -A INPUT -p tcp --dport $calibre_port -m state --state NEW -i $wan -j ACCEPT
     $IPTABLES -A INPUT -p tcp --dport $sugarizer_port -m state --state NEW -i $wan -j ACCEPT
+    $IPTABLES -A INPUT -p tcp --dport $transmission_http_port -m state --state NEW -i $wan -j ACCEPT
+    $IPTABLES -A INPUT -p tcp --dport $transmission_peer_port -m state --state NEW -i $wan -j ACCEPT
 fi
 
 if [ "$iiab_gateway_enabled" == "True" ]; then
diff --git a/roles/transmission/README.rst b/roles/transmission/README.rst
new file mode 100644
index 000000000..12029afea
--- /dev/null
+++ b/roles/transmission/README.rst
@@ -0,0 +1,62 @@
+===================
+Transmission README
+===================
+
+Transmission is a set of lightweight BitTorrent clients (in GUI, CLI and daemon form).  All these incarnations feature a very simple and intuitive interface, on top on an efficient, cross-platform back-end.
+
+Transmission is intended to download KA Lite content to IIAB, from places like http://pantry.learningequality.org/downloads/ka-lite/0.17/content/ -- and also to seed it, in assistance of others.
+
+Once the packages are downloaded, please verify the content before copying it (carefully) to KA Lite content directory: /library/ka-lite/content
+
+Caution
+-------
+
+Usage of Transmission consumes significant Internet data and system resources.
+Caveat emptor!  (That's Latin for "Buyer Beware")
+
+Access
+------
+
+Login to Transmission's web interface http://box:9091 using administrative account:
+
+Username: Admin
+Password: changeme
+
+Alternatively, you can type 'transmission-remote' at the command-line.
+
+Configuration
+-------------
+
+You can configure Transmission using its web interface http://box:9091
+
+You can also edit Transmission settings in '/etc/transmission-daemon/settings.json'.  Before you start editing the
+'settings.json' file, please ensure that transmission-daemon.service is stopped:
+
+$ sudo systemctl stop transmission-daemon.service
+
+$ sudo nano /etc/transmission-daemon/settings.json
+
+Adding torrents
+---------------
+
+Transmission can facilitate provisioning your IIAB, by adding KA Lite content from places like: http://pantry.learningequality.org/downloads/ka-lite/0.17/content/
+
+You can also download other torrents using Transmission's web interface, or by typing 'transmission-remote' at the command-line.
+
+$ transmission-remote -a <path_to_the.torrent>
+
+Known Issues
+------------
+
+* Default Transmission user/group (See https://github.com/transmission/transmission/issues/537).  Currently you need to set these "transmission_user" and "transmission_group" variables.  Check their values in transmission-daemon's systemd unit file: lib/systemd/system/transmission-daemon.service
+
+* Random Ports: Currently it is not possible to use random ports in the range 49152-65535.  It is difficult to open multiple ports in IIAB's iptables-based firewall.
+
+Troubleshooting
+---------------
+
+Please check if the transmission daemon is running:
+
+$ sudo systemctl status transmission-daemon.service
+
+Check that Transmission's settings are correct in: /etc/transmission-daemon/settings.json
diff --git a/roles/transmission/defaults/main.yml b/roles/transmission/defaults/main.yml
new file mode 100644
index 000000000..ba9c6929e
--- /dev/null
+++ b/roles/transmission/defaults/main.yml
@@ -0,0 +1,33 @@
+# The values here are defaults.
+# To override them edit /etc/iiab/local_vars.yml
+
+# Installation Variables
+transmission_install: False
+transmission_enabled: False
+
+# Transmission default download directory.
+transmission_download_dir: "/library/transmission/"
+
+# Transmission default web and bittorrent ports http://box:9091/transmission/
+transmission_http_port: 9091
+transmission_peer_port: 51413
+transmission_url : "/transmission/"
+transmission_user: debian-transmission
+transmission_group: root
+
+# Provision Transmission with default torrents from http://pantry.learningequality.org/downloads/ka-lite/0.17/content/
+transmission_provision: True
+transmission_kalite_version: 0.17
+# Uncomment to enable a language to download.
+transmission_kalite_languages:
+  - english
+  #- french
+  #- hindi
+  #- portugal-portuguese
+  #- brazilian-portuguese
+  #- spanish
+  #- swahili
+
+# Transmission administration account
+transmission_username: Admin
+transmission_password: changeme
diff --git a/roles/transmission/tasks/main.yml b/roles/transmission/tasks/main.yml
new file mode 100644
index 000000000..a71f831ee
--- /dev/null
+++ b/roles/transmission/tasks/main.yml
@@ -0,0 +1,73 @@
+---
+- name: Create Transmission download directory
+  file:
+    path: "{{ item }}"
+    owner: "{{ transmission_user }}"
+    group: "{{ transmission_group }}"
+    mode: 0755
+    state: directory
+  with_items:
+    - "{{ transmission_download_dir }}"
+
+- name: Install Transmission daemon and its command line tools.
+  package:
+    name: "{{ item }}"
+    state: present
+  with_items:
+    - transmission-daemon
+    - transmission-cli
+
+- name: Stop Transmission daemon before modifying its settings.
+  service:
+    name: transmission-daemon
+    state: stopped
+
+- name: Create the transmission-daemon settings
+  template:
+    src: "{{ item.src }}"
+    dest: "{{ item.dest }}"
+    mode: "{{ item.mode }}"
+    owner: "{{ transmission_user }}"
+    group: "{{ transmission_group }}"
+  with_items:
+    - { src: 'settings.json.j2', dest: '/etc/transmission-daemon/settings.json', mode: '0644' }
+
+- name: Start Transmission daemon.
+  service:
+    name: transmission-daemon
+    state: restarted
+    enabled: yes
+  when: transmission_enabled
+
+- name: Add ka-lite torrents to transmission daemon.
+  shell: /usr/bin/transmission-remote -a http://pantry.learningequality.org/downloads/ka-lite/{{ transmission_kalite_version }}/content/ka-lite-0.17-resized-videos-{{ item }}.torrent
+  with_items: "{{ transmission_kalite_languages }}"
+  ignore_errors: yes
+  when: transmission_provision
+
+- name: Disable Transmission daemon service.
+  service:
+    name: transmission-daemon
+    enabled: no
+    state: stopped
+  when: not transmission_enabled
+
+- name: Add transmission to list of services at /etc/iiab/iiab.ini
+  ini_file:
+    dest: "{{ service_filelist }}"
+    section: transmission
+    option: "{{ item.option }}"
+    value: "{{ item.value }}"
+  with_items:
+    - option: name
+      value: transmission
+    - option: description
+      value: '"Transmission is a set of lightweight BitTorrent clients (in GUI, CLI and daemon form)."'
+    - option: transmission_enabled
+      value: "{{ transmission_enabled }}"
+    - option: transmission_install
+      value: "{{ transmission_install }}"
+    - option: transmission_http_port
+      value: "{{ transmission_http_port }}"
+    - option: transmission_url
+      value: "{{ transmission_url }}"
diff --git a/roles/transmission/templates/settings.json.j2 b/roles/transmission/templates/settings.json.j2
new file mode 100644
index 000000000..a7c31a1ee
--- /dev/null
+++ b/roles/transmission/templates/settings.json.j2
@@ -0,0 +1,73 @@
+{
+    "alt-speed-down": 50,
+    "alt-speed-enabled": false,
+    "alt-speed-time-begin": 540,
+    "alt-speed-time-day": 127,
+    "alt-speed-time-enabled": false,
+    "alt-speed-time-end": 1020,
+    "alt-speed-up": 50,
+    "bind-address-ipv4": "0.0.0.0",
+    "bind-address-ipv6": "::",
+    "blocklist-enabled": false,
+    "blocklist-url": "http://www.example.com/blocklist",
+    "cache-size-mb": 4,
+    "dht-enabled": true,
+    "download-dir": "{{ transmission_download_dir }}",
+    "download-limit": 100,
+    "download-limit-enabled": 0,
+    "download-queue-enabled": true,
+    "download-queue-size": 5,
+    "encryption": 1,
+    "idle-seeding-limit": 30,
+    "idle-seeding-limit-enabled": false,
+    "incomplete-dir": "/var/lib/transmission-daemon/Downloads",
+    "incomplete-dir-enabled": false,
+    "lpd-enabled": false,
+    "max-peers-global": 200,
+    "message-level": 1,
+    "peer-congestion-algorithm": "",
+    "peer-id-ttl-hours": 6,
+    "peer-limit-global": 200,
+    "peer-limit-per-torrent": 50,
+    "peer-port": {{ transmission_peer_port }},
+    "peer-port-random-high": 65535,
+    "peer-port-random-low": 49152,
+    "peer-port-random-on-start": false,
+    "peer-socket-tos": "default",
+    "pex-enabled": true,
+    "port-forwarding-enabled": false,
+    "preallocation": 1,
+    "prefetch-enabled": true,
+    "queue-stalled-enabled": true,
+    "queue-stalled-minutes": 30,
+    "ratio-limit": 2,
+    "ratio-limit-enabled": false,
+    "rename-partial-files": true,
+    "rpc-authentication-required": false,
+    "rpc-bind-address": "0.0.0.0",
+    "rpc-enabled": true,
+    "rpc-host-whitelist": "",
+    "rpc-host-whitelist-enabled": true,
+    "rpc-password": "{{ transmission_password }}",
+    "rpc-port": {{ transmission_http_port }},
+    "rpc-url": "{{ transmission_url }}",
+    "rpc-username": "{{ transmission_username }}",
+    "rpc-whitelist": "127.0.0.1,192.168.*.*",
+    "rpc-whitelist-enabled": true,
+    "scrape-paused-torrents-enabled": true,
+    "script-torrent-done-enabled": false,
+    "script-torrent-done-filename": "",
+    "seed-queue-enabled": false,
+    "seed-queue-size": 10,
+    "speed-limit-down": 100,
+    "speed-limit-down-enabled": false,
+    "speed-limit-up": 100,
+    "speed-limit-up-enabled": false,
+    "start-added-torrents": true,
+    "trash-original-torrent-files": false,
+    "umask": 18,
+    "upload-limit": 100,
+    "upload-limit-enabled": 0,
+    "upload-slots-per-torrent": 14,
+    "utp-enabled": true
+}