Chapter 3: EIU datafill 97

Table EXNDINV filters IP packets. Only packets with a specified source IP address can access DMS IP nodes. The SCRNFLG option in table IPNETWRK enables this functionality

Figure 23 shows table EXNDINV filtering IP packets

Figure 23 Table EXNDINV filters IP packets

47.105.150.1

 

 

 

 

 

 

CM

 

 

EIU 1

 

47.208.8.2

 

 

47.105.150.2

 

 

 

 

Note: Packets for WS #1 are blocked while packets

WS #1

WS #2

from

 

 

 

 

47.208.8.96

47.208.8.82

TABLE IPNETWRK

 

 

 

 

 

 

0 47 105 150 1

16 (EIU 1)$(SCRNFLAG Y)$

 

 

 

TABLE IPROUTER

 

 

 

 

 

 

1 EIU 1 47 105 150 2

47 208 8 2

YES

YES

 

 

TABLE ENXDINV

 

 

 

 

 

 

EXND 0 WS#2 (ENIP 47 208 8 82)$ MER MER 1 A 1 HP_WS‘bmerh818’ ALL TCP ICMP UDP $ NA NA N

Datafill sequence and implications

For external nodes that communicate using ICMP, the following tables must be datafilled before table EXNDINV:

PMLOADS

LIUINV (specifies EIU hardware)

IPNETWRK (specifies SuperNode network addresses)

IPROUTER (specifies EIUs as Ethernet routers)

ENSITES (specifies external node and service peripheral module [SPM] sites)

ENTYPES (specifies external node types)

Note: Table IPROUTER is not required for interface EIUs.

DMS-100 Family EIU User Guide TELECOM12

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Cabletron Systems DMS-100 manual Pmloads