From: Elias Aggelidis (eaggel@xxxxxxxxxxx)
Date: Thu Apr 19 2001 - 19:08:00 GMT-3
Dear Group,
I am trying to implement the following question.
Router X should only send SNA traffic. (You may assume that the only SAP
we are interesting is 0x04, 0x08).
In real life I would have use the following command
dlsw icanreach saps 04 08
Which means that the router can reach only this SAPs and nothing else
( This is what the command is doing as it is discribed on the Documention CD
> This command can be entered at any time. It causes a capabilities
exchange
> to relay the information to all active peers. By specifying resource
names or
> MAC addresses in this command, you can avoid broadcasts from remote peers
> that are looking for this resource. By specifying "exclusive" you can
> avoid broadcasts to this router or any resources. For example, you could
> configure the front-end processor (FEP) MAC address or corporate site LAN
> servers in central site routers to avoid any broadcasts over the WAN
> for these resources.
)
After applying the command on the router, the dlsw local capabilities has
been changed to the follow output :
Rack7R5#sh dlsw capabilities local
DLSw: Capabilities for local peer 133.77.5.5
vendor id (OUI) : '00C' (cisco)
version number : 2
release number : 0
init pacing window : 20
unsupported saps : 0 2 6 A C E 10 12 14 16 18 1A 1C 1E 20 22 24 26
28 2A 2C 2E 30 32 34 36 38 3A 3C 3E 40 42 44 46 48 4A 4C 4E 50 52 54 56 58
5A 5C 5E 60 62 64 66 68 6A 6C 6E 70 72 74 76 78 7A 7C 7E 80 82 84 86 88 8A
8C 8E 90 92 94 96 98 9A 9C 9E A0 A2 A4 A6 A8 AA AC AE B0 B2 B4 B6 B8 BA BC
BE C0 C2 C4 C6 C8 CA CC CE D0 D2 D4 D6 D8 DA DC DE E0 E2 E4 E6 E8 EA EC EE
F0 F2 F4 F6 F8 FA FC FE
num of tcp sessions : 1
loop prevent support : no
icanreach mac-exclusive : no
icanreach netbios-excl. : no
reachable mac addresses : none
reachable netbios names : none
V2 multicast capable : yes
DLSw multicast address : none
cisco version number : 1
peer group number : 0
border peer capable : no
peer cost : 3
biu-segment configured : no
UDP Unicast support : yes
NetBIOS Namecache length : 15
current border peer : none
version string :
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-JS-L), Version 12.0(16), RELEASE SOFTWARE
(fc2)
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Sat 03-Mar-01 00:38 by dchih
As you can see, the router does not support any other SAPs expect 04, 08.
So NETBios 0F and Novel 0E would not pass.
IS THIS WHAT THE TEST WANTS ??
IS THIS THE CORECT TECHNOLOGY ??
Regards
Elias
****************************************************************
Elias Aggelidis ALGOSYSTEMS SA
Senior Network Engineer 4, Sardeon Str
CCNA, CCNP Nea Smyrni
CVOICE, Security Specialised
PICA Administrator
Athens 17121
tel: +301-9310281 GREECE
fax: +301-9352873
email: eaggel@algo.com.gr
****************************************************************
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