********************************************************************** 
DDN MGT Bulletin 74 DCA DDN Defense Communications System 
11 July 90 Published by: DDN Network Info Center
Supersedes DDN Mgt Bull. 49 (NIC@NIC.DDN.MIL) (800) 235-3155
and DDN Mgt Bull. 53


DEFENSE DATA NETWORK

MANAGEMENT BULLETIN

The DDN MANAGEMENT BULLETIN is distributed online by the DDN Network
Information Center under DCA contract as a means of communicating
official policy, procedures and other information of concern to
management personnel at DDN facilities. Back issues may be read
through the TACNEWS server ("@n" command at the TAC) or may be
obtained by FTP (or Kermit) from the NIC.DDN.MIL host [192.67.67.20]
using login="anonymous" and password="guest". The pathname
for bulletins is DDN-NEWS:DDN-MGT-BULLETIN-nn.TXT (where "nn" is the
bulletin number).
**********************************************************************


MILNET Gateway and Internet Traffic Homing Announcement



PURPOSE:

This announcement defines software configuration changes that must be made 
to each MILNET gateway in order to acquire Exterior Gateway Protocol (EGP) 
Service. It also defines software configuration changes that must be 
applied to MILNET hosts sending traffic to subscribers on the Internet.

This announcement replaces DDN Management Bulletin 49, ARPANET and MILNET 
Host Rehoming Announcement dated 23 DEC 88 and DDN Management Bulletin 53, 
ARPANET and MILNET Gateway Rehoming Announcement dated 12 JAN 89.

-- For EGP Service, these changes are required due to the extensive 
growth in the number of gateways served on the MILNET and to alleviate 
performance problems in the EGP Servers. 

-- For Internet Traffic, these changes are required as a result of the 
termination of the ARPANET and the replacement connections between MILNET 
and the NSFNET. 

(NOTE: Air Force Concentrators/Gateways are exempt
from this change. Through agreements reached
between DCA and the Air Force, those Concentrators
will be assigned to one of two EGP Servers (DCEC
or LBL). The Air Force has the capability to
implement global changes to their Concentrators
and has agreed to test and possibly implement
several changes in the EGP process which will be
beneficial to all.)


A secondary purpose of this Bulletin is to acquire information concerning 
the capabilities and limitations of gateways on the MILNET in order to 
design and implement future changes to improve EGP Service. Gateway 
administrators are requested to identify their capability to: (1) modify 
EGP service parameters that will permit negotiation of updates at variable 
intervals from three minutes to one hour in order to reduce the frequency 
of updates, and (2) request EGP service from a single server (versus 
automatically sending to two servers) and modify that assignment quickly if 
needed. Also, as the number of networks in the Internet grows, the size of 
the EGP update continues to grow, and may exceed 4K bytes over the next 
year. Please note any limitations in your gateways to accommodate such 
large updates. This information should be sent to:

Defense Communications Engineering Center
Code DRFDS (Mr Dennis Morris)
1860 Wiehle Avenue
Reston Virginia 22090-5500

(Electronic Mail Address is MorrisD@imo-uvax.dca.mil)


TECHNICAL NOTES:

The upper range value of the EGP neighbor acquisition poll interval was 
recently increased from 600 seconds to 3600 seconds to permit less frequent 
polling for those gateways that can effectively function with an extended 
polling time. Reducing the number of polls will, of course, reduce the 
loading on the EGP Servers. Gateway administrators are encouraged to 
implement the most INFREQUENT poll time that can be supported. Contact the 
Mailbridge Hot Line at 1-800-492-4992 or (617) 873-3571 for clarification 
and/or assistance in defining EGP Server interface characteristics.

EGP Server assignments are based primarily upon the network minimum hop 
path between the Packet Switching Node (PSN) to which the Gateway is 
connected and the PSN to which the EGP Server is connected. This logical 
path is dependent upon network topology and does not necessarily have any 
geographical basis.

Internet Traffic assignments are based upon historical traffic volumes. 
The use of MITRE as the primary address for most hosts is the result of the 
predominant Internet Traffic MILNET host being assigned to AMES for its 
primary address.



SCHEDULE: 

It is intended that these changes be made on a single week-end. Changes 
may be implemented beginning at 2100 hours local time on Friday, 10 AUG 90 
and should be completed no later than 0600 hours local time on Monday, 
13 AUG 90. 

Questions or issues should be directed to:
BBNCC Mailbridge Hot Line at 1-800-492-4992 or (617) 873-3571. 

It is critical that these changes be accomplished; otherwise, EGP
service and exchange of traffic with the Internet may be inadequate.
These changes are designed to result in equal sharing of the user
demand over the Mailbridges. The changes will be verified and
non-compliance will be reported to the parent Service/Agency
organization for corrective action.



NETWORK ADDRESSES:

This section provides a list of assignments for the PSN to which the 
gateways or hosts are homed and their assigned EGP Servers and Internet 
Traffic Servers.

-- For Gateway Administrators. 

The entries under the column heading "EGP Servers" provides a list 
of assignments between the PSN to which the gateways are homed and their 
defined EGP Servers. Each Gateway should acquire as EGP peers (neighbors) 
only those two Servers assigned. As an example, all gateways connected to 
MILNET PSN Number 64 (ROBIN) should assign MITRE (26.20.0.17) and, if 
necessary, BBN (26.20.0.72) as their EGP servers.


-- For Host Administrators.

The entries under the column heading "Internet Traffic" provide a 
list of assignments between the PSN to which hosts are homed and their 
default gateway or Internet Traffic Server. As an example, all hosts 
connected to MILNET PSN Number 64 (ROBIN) should send non-MILNET traffic to 
MITRE (26.20.0.17), or to AMES (26.20.0.16) when MITRE is unavailable.

The following IP network addresses apply:

Mailbridge Name Site Location Network Address
--------------- ------------- ---------------

AMES Moffett Field CA 26.20.0.16
BBN Cambridge MA 26.20.0.72
DCEC Reston VA 26.21.0.104
ISI Marina Del Rey CA 26.6.0.103
LBL Berkeley CA 26.20.0.34
MITRE McLean VA 26.20.0.17
RAN Randolph AFB TX 26.3.0.101*

[* NOTE: On 31 July 1990, the address for the Randolph AFB mailbridge
was corrected to 26.3.0.101 in the online version of this bulletin.
The bulletin originally had the incorrect address of 26.30.0.101.]


SPECIFIC ASSIGNMENTS:


PSN PSN EGP Servers Internet Traffic
Nbr Name Primary Secondary Primary Secondary

1 OBL BBN MITRE MITRE AMES
2 VHN BBN MITRE MITRE AMES
3 NOSC ISI AMES AMES MITRE
4 HDL BBN RAN MITRE AMES
5 BRM BBN MITRE MITRE AMES
6 RDM RAN MITRE MITRE AMES
7 LON RAN MITRE MITRE AMES
8 NRL MITRE BBN MITRE AMES
9 SIG RAN MITRE MITRE AMES
10 RTA RAN MITRE MITRE AMES
11 CORON ISI AMES MITRE AMES
12 VCA MITRE RAN MITRE AMES
13 GUNTR MITRE RAN MITRE AMES
14 LD2 AMES BBN MITRE AMES
15 RAM BBN MITRE MITRE AMES
16 MFFT AMES ISI AMES MITRE
17 MCLEN MITRE RAN MITRE AMES
18 GRIFF BBN ISI MITRE AMES
19 GAITH ISI BBN MITRE AMES
20 HILL AMES RAN AMES MITRE
21 LVRMR AMES ISI AMES MITRE
22 MCCL1 AMES RAN AMES MITRE
23 MCC2 AMES ISI AMES MITRE
24 JOHNS MITRE RAN MITRE AMES
25 CTN RAN MITRE MITRE AMES
26 PENT RAN ISI AMES MITRE
27 HLH MITRE RAN MITRE AMES
28 ELF AMES ISI AMES MITRE
29 ABER BBN MITRE MITRE AMES
30 BROOK RAN AMES MITRE AMES
31 NFLK2 RAN MITRE MITRE AMES
32 GREEL AMES ISI AMES MITRE
33 MONTY AMES ISI AMES MITRE
34 BERK AMES ISI AMES MITRE
35 SD2NS ISI AMES AMES MITRE
36 BNT BBN RAN MITRE AMES
37 FTMCP MITRE BBN MITRE AMES
38 NAVTN RAN MITRE MITRE AMES
39 EDWDS ISI AMES MITRE AMES
40 CAMB BBN MITRE MITRE AMES
41 RED MITRE RAN MITRE AMES
42 RM2 ISI BBN MITRE AMES
43 SHFT AMES ISI AMES MITRE
44 ORLAN RAN AMES MITRE AMES
45 DOVER BBN MITRE MITRE AMES
46 NEME ISI AMES MITRE AMES
47 WPAFB RAN BBN MITRE AMES
48 KIRK ISI AMES MITRE AMES
49 CAMB2 MITRE BBN MITRE AMES

50 ALEX BBN MITRE MITRE AMES
51 RNDY2 RAN AMES MITRE AMES
52 RNDY3 RAN MITRE MITRE AMES
53 EGLIN MITRE AMES MITRE AMES
54 DETRK RAN ISI MITRE AMES
55 ARGON RAN ISI MITRE AMES
56 LD1 ISI RAN MITRE AMES
57 MEADE MITRE BBN MITRE AMES
58 NYC BBN MITRE MITRE AMES
59 SCOTT AMES BBN MITRE AMES
60 FTMON BBN MITRE MITRE AMES
61 STLS BBN AMES MITRE AMES
62 CPRBT ISI AMES MITRE AMES
63 ELSE2 ISI RAN MITRE AMES
64 ROBIN MITRE BBN MITRE AMES
65 ELSEG ISI AMES MITRE AMES
66 HANSC BBN ISI MITRE AMES
67 ANDRW RAN ISI MITRE AMES
68 PHLPN ISI AMES AMES MITRE
69 FT2 BBN MITRE MITRE AMES
70 DCA2 MITRE BBN MITRE AMES
71 TINK RAN AMES MITRE AMES
72 CAMB3 BBN MITRE MITRE AMES
73 MENPK AMES BBN MITRE AMES
74 WHTSN RAN ISI AMES MITRE
75 YUMA ISI AMES AMES MITRE
76 DCAOC MITRE BBN MITRE AMES
77 ZAMA ISI AMES MITRE AMES
78 PUGET AMES RAN AMES MITRE
79 BENNI MITRE BBN MITRE AMES
80 FTBRG RAN ISI MITRE AMES
81 CRDRK MITRE BBN MITRE AMES
82 BUCK AMES ISI AMES MITRE
83 ROB2 MITRE BBN MITRE AMES
84 NSWC MITRE ISI MITRE AMES
85 CHINA ISI AMES MITRE AMES
86 LOW1 RAN AMES MITRE AMES
87 KIRT2 AMES ISI MITRE AMES
88 BETHS MITRE BBN MITRE AMES
89 CLRK ISI AMES MITRE AMES
90 ALAMO ISI RAN MITRE AMES
91 CPO RAN MITRE MITRE AMES
92 NWNSC BBN MITRE MITRE AMES
93 KADE AMES ISI AMES MITRE
94 LOW2 RAN AMES MITRE AMES
95 LVMR2 AMES MITRE MITRE AMES
96 CORO MITRE BBN MITRE AMES
97 PXNAS MITRE ISI MITRE AMES
98 MAC RAN AMES MITRE AMES
99 HILL2 AMES RAN MITRE AMES

100 HICK AMES ISI AMES MITRE
101 RANDY RAN ISI MITRE AMES
102 WOSWC ISI MITRE MITRE AMES
103 MRDEL ISI AMES AMES MITRE
104 DC104 MITRE BBN MITRE AMES
105 OFAFB RAN AMES MITRE AMES
106 RSLYN MITRE RAN MITRE AMES
107 ALEX3 BBN MITRE MITRE AMES
108 NFKNS RAN AMES MITRE AMES
109 NORL AMES RAN AMES MITRE
110 JAX1 RAN AMES MITRE AMES
111 DAVIS ISI AMES MITRE AMES
112 STLA2 MITRE AMES MITRE AMES
113 ANNIS MITRE AMES MITRE AMES
114 NCAD ISI RAN MITRE AMES
115 WAREN MITRE BBN MITRE AMES
116 FKT BBN MITRE MITRE AMES
117 WLKR AMES ISI AMES MITRE
118 SCOT2 BBN RAN MITRE AMES
119 SNV BBN MITRE MITRE AMES
120 DUGWY MITRE AMES MITRE AMES
121 ALAME AMES ISI AMES MITRE
122 FTHCA ISI AMES MITRE AMES
123 WP2 RAN BBN MITRE AMES
124 WP3 RAN ISI MITRE AMES
125 FTLEV RAN AMES MITRE AMES
126 MONT2 AMES ISI AMES MITRE
127 HAN2 BBN MITRE MITRE AMES
128 ONIZ AMES RAN AMES MITRE
129 FTBEN BBN RAN MITRE AMES
130 FTDIX BBN MITRE MITRE AMES
131 KNOX BBN RAN MITRE AMES
132 SILL RAN AMES MITRE AMES
133 SIDIO AMES ISI AMES MITRE
134 SHARP AMES ISI AMES MITRE
135 FTORD ISI AMES MITRE AMES
136 MIL RAN BBN MITRE AMES
137 SHEP MITRE RAN MITRE AMES
138 LANGL ISI MITRE MITRE AMES
139 KELLY RAN ISI AMES MITRE
140 TINK2 ISI RAN MITRE AMES
141 ANDR AMES ISI AMES MITRE
142 FTBEL ISI MITRE MITRE AMES
143 KEESL MITRE AMES MITRE AMES
144 OFTT2 RAN AMES AMES MITRE
145 WHLR AMES ISI AMES MITRE
146 MUN BBN MITRE MITRE AMES
147 SAM1 BBN RAN MITRE AMES
148 OAK AMES ISI AMES MITRE
149 PHILI MITRE ISI MITRE AMES

150 ANK RAN MITRE MITRE AMES
151 DENVR RAN AMES AMES MITRE
152 MECH ISI AMES MITRE AMES
153 ROCKI BBN MITRE MITRE AMES
154 SAM2 RAN BBN MITRE AMES
155 DB2 BBN MITRE MITRE AMES
156 CLT MITRE RAN MITRE AMES
157 SHERI BBN MITRE MITRE AMES
158 COLA AMES MITRE MITRE AMES
159 LEWIS AMES RAN AMES MITRE
160 BATTL RAN MITRE MITRE AMES
161 NORL2 AMES ISI AMES MITRE
162 CAMP MITRE BBN MITRE AMES
163 FTHD RAN MITRE MITRE AMES
164 CORP RAN AMES MITRE AMES
165 HEL RAN MITRE MITRE AMES
166 BER RAN BBN MITRE AMES
167 NEWRK MITRE RAN MITRE AMES
168 WAHI AMES ISI AMES MITRE
169 COLB MITRE RAN AMES MITRE
170 EIELS AMES ISI AMES MITRE
171 YONG AMES ISI AMES MITRE
172 LITH BBN RAN MITRE AMES
173 PEAR AMES ISI AMES MITRE
174 STI RAN ISI MITRE AMES
175 PND RAN BBN MITRE AMES
176 WPAF4 RAN ISI MITRE AMES
177 GRA BBN MITRE MITRE AMES
178 HAN3 BBN MITRE MITRE AMES
179 KEYP AMES RAN AMES MITRE
180 HL2 ISI BBN MITRE AMES
181 CAMB4 BBN MITRE MITRE AMES
182 SCRMT AMES ISI AMES MITRE
183 CAMB5 BBN MITRE MITRE AMES
184 SEK MITRE RAN MITRE AMES
185 STT BBN RAN MITRE AMES
186 WBN AMES RAN MITRE AMES
187 TKN BBN AMES MITRE AMES
188 WZG MITRE RAN MITRE AMES
189 BIG BBN ISI MITRE AMES
190 HAN BBN MITRE MITRE AMES
191 SEM MITRE RAN MITRE AMES
192 INC BBN RAN MITRE AMES
193 LAH BBN RAN MITRE AMES
195 TJN ISI RAN MITRE AMES
196 AVO MITRE RAN MITRE AMES
197 RUCK BBN RAN MITRE AMES
198 LUKE AMES ISI MITRE AMES

200 HOME AMES MITRE MITRE AMES
203 PATR MITRE ISI MITRE AMES
204 DOB BBN RAN MITRE AMES
205 STEW RAN ISI MITRE AMES
206 GORD ISI BBN MITRE AMES
208 POLK RAN MITRE MITRE AMES
209 MEMPS RAN AMES MITRE AMES
210 BARKS RAN AMES MITRE AMES
211 LORI BBN AMES MITRE AMES
214 GRAND BBN AMES MITRE AMES
215 TOBY ISI BBN MITRE AMES
216 CHARL MITRE ISI MITRE AMES
217 JACK MITRE BBN MITRE AMES
218 FAIR AMES BBN AMES MITRE
219 MALS BBN MITRE MITRE AMES
220 MCORD AMES BBN AMES MITRE
221 KUNS AMES ISI AMES MITRE
222 OSAN AMES ISI AMES MITRE
223 YOKO AMES ISI AMES MITRE
224 FTRIT BBN RAN MITRE AMES
226 NORTH ISI BBN MITRE AMES
228 MATHR AMES ISI AMES MITRE
229 BLISS RAN AMES MITRE AMES
230 MARCH ISI BBN MITRE AMES
231 RILY MITRE BBN MITRE AMES
232 BEN2 ISI BBN MITRE AMES
235 SEYMR MITRE BBN MITRE AMES
236 KZG AMES BBN MITRE AMES
237 LACK ISI RAN MITRE AMES
238 EUST ISI RAN MITRE AMES
241 MUGU ISI AMES MITRE AMES
242 FTLE AMES RAN MITRE AMES
243 PETE RAN AMES MITRE AMES
244 ABER2 BBN RAN MITRE AMES
246 FTRIC RAN ISI MITRE AMES
247 PENT2 RAN ISI MITRE AMES
248 BRATE AMES ISI MITRE AMES
249 WEST BBN ISI MITRE AMES
250 FINE AMES ISI AMES MITRE



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