General Problem Reporting
See the Problem Reporting
and Help Desk page for possible contacts about Cory and Soda Halls Network issues.
General Networking and related Documentation for EECS
Guest Wireless Access (12/15/05) 
EECS Network Guidelines and Policies (revised 10/25/06)
Information from EECS network upgrade project Summer and Fall of 2002
EECS Launches Aggressive Network Upgrade (6/18/2002)
EECS Network Upgrade Snapshots
EECS distributed local 4-port switches
archived annoucement about EECS dstributed local 4-port switches (7/8/2002)
EECS Node Bank Agreement with CNS (06/01/2002)
List of EECS IP address space
Campus user-installed network equipment Policy
EECS Network Map (02/01/2002)
EECS Private Network Agreement (04/25/01)
EECS (Cory and Soda Halls) Wireless Infrastructure
EECS (Cory and Soda Halls) Wireless Infrastructure Activation Procedure
MOU for CNS/EECS networking arrangement and responsibilities (7/16/99) and Errata (7/21/99).
EECS (Cory and Soda Halls) DHCP and IP Guideline.
EECS (Cory and Soda Halls) Network Drop Setup Guidelines.
EECS (Cory and Soda Halls) Network Ports Query Form.
UC Berkeley Networked Buildings -- 8/1/96
UC Berkeley Network Logical Map -- 7/18/95
Cory Hall Network Summary
Soda Hall Network Summary
BWRC Network Summary
EECS managed HMB Network Summary
WINS (Windows) Servers
Network Time Services
Requesting to Activate/Deactivate a Network Drop within EECS Offices
Please use the following port request form to request an activation or deactivation of a network drop within any offices in EECS Department (Cory and Soda Halls).
New port installation are currently free for CIS fee paying users.
A normal
request for network drop activation will take 10 working days.
Requesting to Activate/Deactivate a Computer System within EECS network
When registering a new or moved computer system within the EECS networks, it is the machine's system administrator's responsibility to coordinate this event with IDSG staff. An authorized system administrator can use the following registration form to submit the request to IDSG DNS staff, and will take 2 working days for the DNS changes to be updated.
Remote Access
The EECS department no longer maintains dial-in modems. The campus CNS group maintains campus modem pools for remote connection to UC Berkeley networks.
For a description of the CNS service, see their Accessing the Network Remotely page.
Network Time Services
IDSG has a number of machines which are running the "extended network time protocol daemon" (xntpd), which keeps their time closely synchronized to highly accurate clocks on the Internet. We recommend that UNIX workstations run "rdate" or "ntpdate" once per hour from a cron job using the interface of either cronus or rhea on your network.
cronus interfaces rhea interfaces
cronus-32 128.32.32.21 rhea-32 128.32.32.23
cronus-33 128.32.33.21 rhea-33 128.32.33.23
cronus-34 128.32.34.21 rhea-34 128.32.34.23
cronus-35 128.32.35.21 rhea-35 128.32.35.23
cronus-36 128.32.36.21 rhea-36 128.32.36.23
cronus-37 128.32.37.21 rhea-37 128.32.37.23
cronus-38 128.32.38.21 rhea-38 128.32.38.23
cronus-40 128.32.40.21 rhea-40 128.32.40.23
cronus-41 128.32.41.21 rhea-41 128.32.41.23
cronus-42 128.32.42.21 rhea-42 128.32.42.23
cronus-43 128.32.43.21 rhea-43 128.32.43.23
cronus-47 128.32.47.21 rhea-47 128.32.47.23
cronus-48 128.32.48.21 rhea-48 128.32.48.23
cronus-62 128.32.62.21 rhea-62 128.32.62.23
cronus-63 128.32.63.21 rhea-63 128.32.63.23
cronus-112 128.32.112.21 rhea-112 128.32.112.23
cronus-131 128.32.131.21 rhea-131 128.32.131.23
cronus-132 128.32.132.21 rhea-132 128.32.132.23
cronus-134 128.32.134.21 rhea-134 128.32.134.23
cronus-139 128.32.139.21 rhea-139 128.32.139.23
cronus-153 128.32.153.21 rhea-153 128.32.153.23
cronus-168 128.32.168.21 rhea-168 28.32.168.23
cronus-171 128.32.171.21 rhea-171 128.32.171.23
cronus-244 128.32.244.21 rhea-171 128.32.244.23
cronus-cusg 169.229.3.251 rhea-cusg 169.229.3.252
cronus-169-229-63 169.229.63.21 rhea-169-229-63 169.229.63.23
Machines which need even higher accuracy can run xntpd
themselves, although this is discouraged unless the high accuracy is really
needed, as xntp uses much more network bandwith (and CPU time)
than timed. If you wish to run xntp, we recommend using the
IDSG pleiades file server machines as time servers (see the sample xntpd configuration file in /usr/sww/share/etc/ntp.conf).
Services Provided by IS&T
Information Systems and Technologies (IS&T) provides a number of network services to the campus community at large:
news server (NNTP): usenet.berkeley.edu 128.32.206.40
nameservers (DNS): ns1.berkeley.edu 128.32.206.9, 128.32.136.9
ns2.berkeley.edu 128.32.206.12, 128.32.136.12
Cory Hall Networks
Below are the subnets now live in Cory Hall, and relevant information for each. All Cory Hall subnets are maintained by IDSG staff, with external wiring contract support.
Cory Hall Network Summary
| name (old name) |
network |
broadcast address |
netmask |
router/gateway |
DNS server |
DHCP? (contact) |
type |
| |
128.32.32.0/24 |
128.32.32.255 |
255.255.255.0 |
128.32.32.1 |
128.32.32.21, 128.32.32.23, 128.32.136.9 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| |
128.32.33.0/24 |
128.32.33.255 |
255.255.255.0 |
128.32.33.1 |
128.32.33.23, 128.32.33.21, 128.32.206.12 |
Yes (hostmaster) |
10/1000Mbs SW/ether |
| |
128.32.40.0/24 |
128.32.40.255 |
255.255.255.0 |
128.32.40.1 |
128.32.40.21, 128.32.40.23, 128.32.136.9 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| |
128.32.41.0/24 |
128.32.41.255 |
255.255.255.0 |
128.32.41.1 |
128.32.41.23, 128.32.41.21, 128.32.206.12 |
Yes (hostmaster) |
10/1000Mbs SW/ether |
| |
128.32.43.0/24 |
128.32.43.255 |
255.255.255.0 |
128.32.43.1 |
128.32.43.21, 128.32.43.23, 128.32.136.9 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| |
128.32.47.0/24 |
128.32.47.255 |
255.255.255.0 |
128.32.47.1 |
128.32.47.23, 128.32.47.21, 128.32.206.12 |
Yes (hostmaster) |
10/1000Mbs SW/ether |
| |
128.32.48.0/24 |
128.32.48.255 |
255.255.255.0 |
128.32.48.1 |
128.32.48.21, 128.32.48.23, 128.32.136.9 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| cory-net-3 (eecs-net) |
128.32.134.0/24 |
128.32.134.255 |
255.255.255.0 |
128.32.134.1 |
128.32.134.21, 128.32.134.23, 128.32.206.12 |
Yes (hostmaster) |
SW/ether |
| cory-net-8 (eecs-term-net) |
128.32.171.0/24 |
128.32.171.255 |
255.255.255.0 |
128.32.171.1 |
128.32.171.23, 128.32.171.21, 128.32.206.12 |
Yes (hostmaster) |
SW/ether |
| Cory Hall secure net in 165 Cory |
128.32.244.0/24 |
128.32.244.255 |
255.255.255.0 |
128.32.244.1 |
128.32.244.21, 128.32.244.23, 128.32.136.9 |
Yes (hostmaster) |
SW/ether |
| |
169.229.3.96/27 (264mCory private network) |
169.229.3.127 |
255.255.255.224 |
169.229.3.197 |
169.229.3.252, 169.229.3.251, 128.32.206.12 |
No |
10/100 Mbps ether |
| |
169.229.3.192/26 |
169.229.3.255 |
255.255.255.192 |
169.229.3.193 |
169.229.3.252, 169.229.3.251, 128.32.206.12 |
Yes (hostmaster) |
10/100 Mbps SW/ether |
Soda Hall Networks
Below are the subnets now live in Soda Hall, and relevant information for each. All public Soda Hall subnets are maintained by IDSG staff, with external wiring contract support.
Soda Hall Network Summary
| network |
broadcast address |
netmask |
router/gateway |
DNS server |
DHCP? |
type |
| 128.32.34.0/24 |
128.32.34.255 |
255.255.255.0 |
128.32.34.1 |
128.32.34.21, 128.32.34.23, 128.32.136.9 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| 128.32.35.0/24 |
128.32.35.255 |
255.255.255.0 |
128.32.35.1 |
128.32.35.23, 128.32.35.21, 128.32.206.12 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| 128.32.36.0/24 |
128.32.36.255 |
255.255.255.0 |
128.32.36.1 |
128.32.36.21, 128.32.36.23, 128.32.136.9 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| 128.32.37.0/24 |
128.32.37.255 |
255.255.255.0 |
128.32.37.1 |
128.32.37.23, 128.32.37.21, 128.32.206.12 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| 128.32.38.0/23 (wireless) |
128.32.39.255 |
255.255.254.0 |
128.32.38.1 |
DHCP assigned |
Yes (hostmaster) |
IEEE 802.11b wireless |
| 128.32.42.0/24 |
128.32.42.255 |
255.255.255.0 |
128.32.42.1 |
128.32.42.23, 128.32.42.21, 128.32.206.12 |
Yes (hostmaster) |
SW/ether |
| 128.32.112.0/24 |
128.32.112.255 |
255.255.255.0 |
128.32.112.1 |
128.32.112.21, 128.32.112.23, 128.32.136.9 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| 128.32.130.0/25 (private motes network) |
128.32.130.127 |
255.255.255.128 |
128.32.130.1 |
contact support@millennium |
contact support@millennium |
10/100Mbs SH/ether |
| 128.32.131.0/24 (wireless) |
128.32.131.255 |
255.255.255.0 |
128.32.131.1 |
DHCP assigned |
Yes (hostmaster) |
IEEE 802.11b wireless |
| 128.32.132.0/24 |
128.32.132.255 |
255.255.255.0 |
128.32.132.1 |
128.32.132.23, 128.32.132.21, 128.32.206.12 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| 128.32.139.0/24 (Soda Hall secure net in Machine rooms) |
128.32.139.255 |
255.255.255.0 |
128.32.139.1 |
128.32.139.21, 128.32.139.23, 128.32.136.9 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| 128.32.153.0/24 |
128.32.153.255 |
255.255.255.0 |
128.32.153.1 |
128.32.153.21, 128.32.153.23, 128.32.136.9 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| 128.32.168.0/24 |
128.32.168.255 |
255.255.255.0 |
128.32.168.1 |
128.32.168.23, 128.32.168.21, 128.32.206.12 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| 169.229.59.192/27 (private roc network) |
169.229.59.223 |
255.255.255.224 |
169.229.59.193 |
169.229.60.104, 169.229.60.109, 128.32.136.9 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| 169.229.60.0/25 |
169.229.60.127 |
255.255.255.128 |
169.229.60.1 |
169.229.60.104, 169.229.60.109, 128.32.136.9 |
Yes (hostmaster) |
10/100Mbs SW/ether |
| 169.229.60.128/25 |
169.229.60.255 |
255.255.255.128 |
169.229.60.129 |
169.229.60.209, 169.229.60.204, 128.32.206.12 |
No |
10/100Mbs SW/ether |
| 169.229.62.0/24 (private Katz network) |
169.229.62.255 |
255.255.255.0 |
169.229.62.1 |
contact sklower |
contact sklower |
10/100Mbs Shared/SW/ether |
BWRC Networks
Below are the subnets now live in BWRC, and relevant information
for each. All public BWRC subnets are maintained by IDSG staff,
with external wiring contract support.
BWRC Network Summary
| network |
broadcast address |
netmask |
router/gateway |
DNS server |
DHCP? |
type |
| 128.32.62.0/24 |
128.32.62.255 |
255.255.255.0 |
128.32.62.2 |
128.32.62.21, 128.32.62.23, 128.32.136.9 |
Yes (root@bwrc) |
10/100Mbs SW/ether |
| 128.32.63.0/26 |
128.32.63.63 |
255.255.255.192 |
128.32.63.1 |
128.32.63.23, 128.32.63.21, 128.32.206.12 |
No |
10/100Mbs SW/ether |
Hearst Mining Building Networks
Below is the subnet in the Hearst Mining Building maintained by IDSG staff, with external wiring contract support.
Hearst Mining Building Network Summary
| network |
broadcast address |
netmask |
router/gateway |
DNS server |
DHCP? |
type |
| 169.229.63.0/25 |
169.229.63.127 |
255.255.255.128 |
169.229.63.1 |
169.229.63.21, 169.229.63.23, 128.32.136.9 |
Yes (hostmaster) |
10/100Mbs SW/ether |
EECS WINS Servers
PCs running Windows 95/98/NT/2000 should be configured to refer to the department WINS servers. Clients should be configured to use the following WINS servers. DHCP clients will automagically be configured to use the department WINS servers via the DHCP server.
EECS WINS Servers Summary
| Machine |
IP |
Search order |
| wins1.eecs.berkeley.edu |
169.229.60.182 |
Primary |
| wins2.eecs.berkeley.edu |
169.229.60.82 |
Secondary |
