Autor: Andrzej Karpinski (karpio_at_fenix.xyz.lublin.pl)
Data: Sat 04 Mar 2000 - 18:34:36 MET
Szanowni Panstwo!
"Laczy nas coraz wiecej" - niech to bedzie mottem tego listu
Pragne przedstawic wyciag z konfiguracji routera na podstawie majla,
ktory pojawil sie kilka dni temu omylkowo publicznie (wskutek indolencji
i niezorganizowania) na grupie o budownictwie. Prosilbym bardzo
o powstrzymanie sie od zlosliwych komentarzy nt. ujawiania tajemnic
sluzbowych przez pracownika instytucji, ktorej majl dotyczy. Chcialbym
natomiast zaproponowac calkiem ciekawa zabawe w "reverse engeneering"
struktury sieci na podstawie ujawnionego configa. Na koniec pozwole
sobie pofilozofowac na tematy ogolnoludzkie i wyciagnac garsc wnioskow,
zachecajac tym samym do dalszej dyskusji ;)
1. Pewien router GSR (C12k) u pewnego providera, nazwijmy go Router nr 1
(w dalszej czescie bedziemy uzywac okreslenia r1, aby skrocic pisownie)
a) Widzimy tu: jedno lacze ATM OC3 (~155Mbit), na ktorym wisza
rownoczesnie:
- lacze pomiedzy R1 i R2 (stlumione do 20Mbit: pozdrowienia dla isp-tech)
- lacze do war_cst2 (jak rozumiem duza czesc Warszawy)
- lacze do Olsztyna
- lacze do Szczecina
- lacze do Katowic
Fragment z configa:
interface ATM1/0 <- interfejs ATM1/0
description Concorde SL4 PO2
no ip address
no ip directed-broadcast
no atm ilmi-keepalive
!
interface ATM1/0.100 point-to-point <- wirtualka do r2
description do r2-cst
bandwidth 20000
ip address 194.204.128.249 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 7 0 100 aal5snap inarp
!
interface ATM1/0.108 point-to-point <- Warszawa CST2
description do vr/0 war_cst2
ip address 194.204.128.13 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 6 0 108 aal5snap inarp
!
interface ATM1/0.114 point-to-point <- Olsztyn
description do vr/0 ols_jar
ip address 194.204.128.17 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 15 0 114 aal5snap inarp
!
interface ATM1/0.117 point-to-point <- Szczecin
description do vr/0 szcz_srd
ip address 194.204.128.81 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 18 0 117 aal5snap inarp
!
interface ATM1/0.201 point-to-point <- Katowice
description do vr/0 kat_wct
ip address 194.204.128.49 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 2 0 201 aal5snap inarp
!
Zaznaczam, ze wszyscy Ci klienci wspoldziela jeden port i wspolne pasmo.
Gdzie podzial sie doskonaly 155Mbit szkielet IP po kraju? :>
b) Drugi interfejs 155Mbit na ktorym wisza rownoczesnie:
- war_cst3 (jak rozumiem czesc Warszawy)
- krakowski Cyfronet
- gazeta wyborcza
- Netia
- polozone lacze ATM do Lublina (nie dziala)
- 2 lacza dla Polski ON-Line (ciekawe, na jednym porcie routera ;> I oni
za to chca placic? :>> )
- PAGI
- KOTT
- SM-Media (stlumione pasmo do 4Mbit)
- ZT Piotrkow czyli www.tpnet.pl i komputer Konrada The I (o nim za
chwile)
- caly Polbox (a wiec i szkielet mtl - stlumione go 6mbit)
- cala siec POL34 (stlumiona do 24/16 Mbit - juz wiemy dlaczego laguje z
polpakiem :> )
- siec Internet Partners
Odpowiadajacy fragment konfigu:
interface ATM1/1
description CST3 port 130
no ip address
no ip directed-broadcast
no ip mroute-cache
no atm ilmi-keepalive
hold-queue 10 in
hold-queue 10 out
!
interface ATM1/1.102 point-to-point
description do vr/0 war_cst3
ip address 194.204.128.1 255.255.255.252
ip access-group 198 out
ip helper-address 194.204.153.90
ip helper-address 194.204.153.92
ip helper-address 194.204.153.2
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 14 0 102 aal5snap inarp
!
interface ATM1/1.110 point-to-point
description Cyfronet Krakow
ip address 194.204.132.165 255.255.255.252
no ip directed-broadcast
atm pvc 31 1 110 aal5snap inarp
!
interface ATM1/1.112 point-to-point
description Gazeta Wyborcza ul.Czerska
ip address 194.204.132.173 255.255.255.252
no ip directed-broadcast
atm pvc 32 1 112 aal5snap inarp
!
interface ATM1/1.113 point-to-point
description Netia war_cst2 fruni/205
ip address 194.204.132.177 255.255.255.252
no ip directed-broadcast
atm pvc 33 1 113 aal5snap inarp
!
interface ATM1/1.115 point-to-point
description lub_cze TYMCZASOWY
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
shutdown
atm pvc 16 0 115 aal5snap inarp
!
interface ATM1/1.119 point-to-point
description Polska On Line BGP AS8965
ip address 194.204.132.201 255.255.255.252
no ip directed-broadcast
atm pvc 34 1 119 aal5snap inarp
!
interface ATM1/1.120 point-to-point
description Polska On Line BGP AS8965
ip address 194.204.132.205 255.255.255.252
no ip directed-broadcast
atm pvc 35 1 120 aal5snap inarp
!
interface ATM1/1.121 point-to-point
description PAGI AS8798
ip address 194.204.132.209 255.255.255.252
no ip directed-broadcast
atm pvc 36 1 121 aal5snap inarp
!
interface ATM1/1.126 point-to-point
description KOTT AS12580
ip address 194.204.132.229 255.255.255.252
no ip directed-broadcast
atm pvc 37 1 126 aal5snap inarp
!
interface ATM1/1.127 point-to-point
description SM Media - AS5616
ip address 194.204.132.237 255.255.255.252
no ip directed-broadcast
atm pvc 40 1 127 aal5snap 4096 4096 inarp
!
interface ATM1/1.128 point-to-point
description ZT Piotrkow
ip address 194.204.132.141 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 30 1 128 aal5snap inarp
!
interface ATM1/1.129 point-to-point
description TESTOWY dla Polbox AS8907
ip address 194.204.130.141 255.255.255.252
no ip directed-broadcast
atm pvc 25 1 129 aal5snap 6144 6144 inarp
!
interface ATM1/1.202 point-to-point
description POL34
ip address 194.204.132.185 255.255.255.252
no ip directed-broadcast
rate-limit input access-group 196 32000 8000 8000 conform-action continue exceed-action drop
atm pvc 5 0 202 aal5snap 24576 16384 inarp
!
interface ATM1/1.1000 point-to-point
description Test Internet Partners
ip address 194.204.132.233 255.255.255.252
no ip directed-broadcast
atm pvc 39 1 111 aal5snap inarp
!
c) Kolejny interfejs ATM, na ktorym wisza rownoczesnie:
- polozony kabel do r2
- lacze do Gdanska
- lacze do Poznania
- lacze do r3_cst
- lacze do war4_cst
- lacze do Bydgoszczy
- dwa lacza do Home Net w Szczecinie (przylaczone znow do jednego portu)
- SGH
interface ATM1/2
description CST4 port 122
no ip address
no ip directed-broadcast
no atm ilmi-keepalive
!
interface ATM1/2.100 point-to-point
description do r2_cst TYMCZASOWY
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
shutdown
atm pvc 43 0 100 aal5snap inarp
!
interface ATM1/2.105 point-to-point
description do gda_r1
ip address 194.204.128.61 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 10 0 105 aal5snap inarp
!
interface ATM1/2.106 point-to-point
description do vr/0 poz_cen
ip address 194.204.128.77 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 8 0 106 aal5snap inarp
!
interface ATM1/2.111 point-to-point
description Do r3-cst
ip address 194.204.128.241 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 12 0 111 aal5snap inarp
!
interface ATM1/2.112 point-to-point
description do vr/0 war_cst4
ip address 194.204.128.233 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 13 0 112 aal5snap inarp
!
interface ATM1/2.116 point-to-point
description do vr/0 byd_biel
ip address 194.204.128.65 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 17 0 116 aal5snap inarp
!
interface ATM1/2.129 point-to-point
description Home Net - szcz_srd fruni/106
ip address 194.204.130.133 255.255.255.252
no ip directed-broadcast
atm pvc 41 1 129 aal5snap inarp
!
interface ATM1/2.130 point-to-point
description Home Net - szcz_srd2 fruni/71
ip address 194.204.130.137 255.255.255.252
no ip directed-broadcast
atm pvc 42 1 130 aal5snap inarp
!
interface ATM1/2.131 point-to-point
description description Szkola Glowna Handlowa, Warszawa
ip address 212.160.125.113 255.255.255.252
no ip directed-broadcast
atm pvc 44 1 131 aal5snap inarp
!
d) Lacze miedzynarodowe do Teleglobe
interface ATM1/3
description CST3 port 131
mtu 1500
no ip address
no ip directed-broadcast
no ip mroute-cache
no atm ilmi-keepalive
hold-queue 10 in
hold-queue 10 out
!
interface ATM1/3.100 point-to-point
description Teleglobe New York
ip address 207.45.199.138 255.255.255.252
ip access-group 101 out
no ip directed-broadcast
rate-limit input access-group 197 32000 8000 8000 conform-action continue exceed-action drop
atm pvc 19 0 100 aal5snap 105000 105000 32
!
Ostatnia linijka powinna rozwiac Wasze watpliwosci na temat przeplywnosci
tego kabla: TPSA ma lacze do Teleglobe o przeplywnosci 105Mbit/s co wynika
z konfiguracji routera - wiecej ani pol bajtu tym kablem nie przejdzie.
Co sie dzieje z pozostala czescia pasma i czemu nie jest ono udostepniane
klientom?
e) Calkiem wolny interfejs, na ktorym moznaby powiesic klientow zamiast
odstawiac partyzantke i wspoldzielone porty:
interface ATM2/0
no ip address
no ip directed-broadcast
shutdown
no atm ilmi-keepalive
!
f) kolejny interfejs 155Mbit na ktorym wisi:
- lacze do frankfurtu - 22mbit/s
- lacze do KAtowic
- lacze do Lodzi
- lacze do war_cst5
- lacze do Wroclawia
Wszystko na jednym porcie routera... Pozdrowienia dla uzytkownikow Lodzi,
Wroclawia i Katowic.
interface ATM2/1
description war_cst3 Atmif/132
no ip address
no ip directed-broadcast
no atm ilmi-keepalive
!
interface ATM2/1.101 point-to-point
description Teleglobe Frankfurt
ip address 195.219.64.162 255.255.255.252
ip access-group 101 out
no ip directed-broadcast
rate-limit input access-group 197 32000 8000 8000 conform-action continue
exceed-action drop
atm pvc 20 0 101 aal5snap 22084 22084 inarp
!
interface ATM2/1.103 point-to-point
description do KAT_R1
mtu 1500
ip address 194.204.128.205 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 22 0 103 aal5snap inarp
!
interface ATM2/1.104 point-to-point
description do vr/0 lodz_cen
ip address 194.204.128.29 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 11 0 104 aal5snap inarp
!
interface ATM2/1.105 point-to-point
description do vr/0 war_cst5
ip address 194.204.128.209 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 24 0 105 aal5snap inarp
!
interface ATM2/1.107 point-to-point
description wro_r1
ip address 194.204.128.93 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 9 0 107 aal5snap inarp
!
g) dalej mamy trzy lacza 155Mbit przypiete do jednego portu 155mbit
- lubelski POLPAK (nie mylic z LUBMAN)
- rzeszow
- krakow
interface ATM2/2
description Concorde SL9 PO1
no ip address
no ip directed-broadcast
no atm ilmi-keepalive
!
interface ATM2/2.101 point-to-point
description kra_r1
ip address 194.204.128.45 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
atm pvc 26 0 101 aal5snap inarp
!
interface ATM2/2.113 point-to-point
description do vr/0 rze_cen
ip address 194.204.128.145 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 4 0 113 aal5snap inarp
!
interface ATM2/2.115 point-to-point
description do vr/0 lub_cze
ip address 194.204.128.33 255.255.255.252
no ip directed-broadcast
ip ospf network broadcast
ip ospf interface-retry 0
atm pvc 23 0 115 aal5snap inarp
h) I na koniec kolejny nieuzywany interfejs
interface ATM2/3
no ip address
no ip directed-broadcast
shutdown
no atm ilmi-keepalive
!
Zerknijmy do C7500 czyli r2...
a) na pcozatek pare nieuzywanych interfejsow.. zeby nie bylo ze sie nie da
interface Serial0/0
no ip address
no ip directed-broadcast
shutdown
!
interface Serial0/1
no ip address
no ip directed-broadcast
shutdown
!
interface Serial0/2
no ip address
no ip directed-broadcast
shutdown
!
interface Serial0/3
no ip address
no ip directed-broadcast
shutdown
interface Serial0/7
no ip address
no ip directed-broadcast
shutdown
!
b) lacze 2mbit fr na ktorymi wisi:
interface Serial0/4
no ip address
no ip directed-broadcast
encapsulation frame-relay IETF
no fair-queue
clockrate 2000000
!
interface Serial0/4.40 point-to-point
description Biuro Prasowe Dyrekcji Spolki TP S.A.,Warszawa
ip address 212.244.252.97 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 40
!
interface Serial0/4.201 point-to-point
description PVC do Katowice
ip address 194.204.128.53 255.255.255.252
ip helper-address 194.204.153.90
ip helper-address 194.204.153.99
no ip directed-broadcast
ip ospf network broadcast
frame-relay interface-dlci 201
!
interface Serial0/4.301 point-to-point
description do kra_r1
ip address 194.204.128.41 255.255.255.252
ip helper-address 194.204.153.90
ip helper-address 194.204.153.99
no ip directed-broadcast
ip ospf network broadcast
frame-relay interface-dlci 301
!
c) kolejny 2mbit serial obslugujacy 6mbit ruch z:
interface Serial0/5
no ip address
no ip directed-broadcast
encapsulation frame-relay IETF
no fair-queue
clockrate 2000000
!
interface Serial0/5.305 point-to-point
description PVC do Rzeszowa
ip address 194.204.128.149 255.255.255.252
ip helper-address 194.204.153.90
ip helper-address 194.204.153.99
no ip directed-broadcast
frame-relay interface-dlci 305
!
interface Serial0/5.401 point-to-point
description PVC do Gdanska
ip address 194.204.128.57 255.255.255.252
ip helper-address 194.204.153.90
ip helper-address 194.204.153.99
no ip directed-broadcast
ip ospf network broadcast
frame-relay interface-dlci 401
!
interface Serial0/5.416 point-to-point
description PVC do Bydgoszczy
ip address 194.204.128.69 255.255.255.252
ip helper-address 194.204.153.90
ip helper-address 194.204.153.99
no ip directed-broadcast
ip ospf network broadcast
frame-relay interface-dlci 416
!
(pozdrowienia dla uzytkownikow z Bydgoszczy i Gdanska)
d) i znowu duze sieci na pojedynczym kablu 2mbit:
interface Serial0/6
no ip address
no ip directed-broadcast
encapsulation frame-relay IETF
no fair-queue
clockrate 2000000
!
interface Serial0/6.801 point-to-point
description PVC do Poznania
ip address 194.204.128.73 255.255.255.252
ip helper-address 194.204.153.90
ip helper-address 194.204.153.99
no ip directed-broadcast
ip ospf network broadcast
frame-relay interface-dlci 801
!
interface Serial0/6.901 point-to-point
description PVC do Szczecina
ip address 194.204.128.85 255.255.255.252
ip helper-address 194.204.153.90
ip helper-address 194.204.153.99
no ip directed-broadcast
ip ospf network broadcast
frame-relay interface-dlci 901
!
interface Serial0/6.951 point-to-point
description PVC do Wroclawia
ip address 194.204.128.89 255.255.255.252
ip helper-address 194.204.153.90
ip helper-address 194.204.153.99
no ip directed-broadcast
ip ospf network broadcast
frame-relay interface-dlci 951
!
e) ciekawa definicja 2mbit ;)
interface Serial1/0
description 2Mb do POLPAK
bandwidth 1984
f) a dalej na jednym porcie 2mbit wisi sobie:
- caly telbank
- atom
- it
- astercity
Czyli ruch na ktory powinno byc 10Mbit pasma do routera jest dlawiony z
powodu przylaczenia do 2mbit portu i wspoldzielenia zasobow przez duzych
klientow. Pozdrowienia dla ladowanych w bambuko klientow.
interface Serial1/1
description war_cst1 fru/17
bandwidth 2560
no ip address
no ip directed-broadcast
encapsulation frame-relay IETF
keepalive 8
fair-queue 64 256 0
!
interface Serial1/1.19 point-to-point
description Telbank AS6778
ip address 194.204.132.169 255.255.255.252
no ip directed-broadcast
no arp frame-relay
frame-relay interface-dlci 19
!
interface Serial1/1.20 point-to-point
description ATOM AS6714
ip address 194.204.132.197 255.255.255.252
no ip directed-broadcast
no arp frame-relay
frame-relay interface-dlci 20
!
interface Serial1/1.21 point-to-point
description Internet Technologies AS8246
ip address 194.204.132.137 255.255.255.252
no ip directed-broadcast
no arp frame-relay
frame-relay interface-dlci 21
!
interface Serial1/1.22 point-to-point
description Aster City Cable AS12476
ip address 194.204.132.225 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 22
!
g) i dalej...
na jednym porcie:
- politechnika szczecinska
- polkomtel
- atm
- perytnet
znow wszyscy mysla, ze kupuja kabel 2 lub wiecej mbit do polpaku, a wisza
na jednym 2mbit porcie ;) pozdrawiam, pozdrawiam..
interface Serial1/2
description war_cst1 port 12
bandwidth 2560
no ip address
no ip directed-broadcast
encapsulation frame-relay IETF
keepalive 8
fair-queue 64 256 0
hold-queue 40 in
!
interface Serial1/2.17 point-to-point
description ATM AS6714
ip address 194.204.132.181 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 17
!
interface Serial1/2.18 point-to-point
description Polkomtel Warszawa as8374
ip address 194.204.132.161 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 18
!
interface Serial1/2.20 point-to-point
description Politechnika Szczecinska AS8286
ip address 194.204.132.193 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 20
!
interface Serial1/2.32 point-to-point
description Peryt AS8367
ip address 194.204.132.153 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 32
!
h) kolejne 2jki pvc do roznych miast.. wszystko na jednym porcie
interface Serial1/3
no ip address
no ip directed-broadcast
encapsulation frame-relay IETF
no fair-queue
clockrate 2000000
!
interface Serial1/3.512 point-to-point
description PVC do Lublina
ip address 194.204.128.37 255.255.255.252
ip helper-address 194.204.153.90
ip helper-address 194.204.153.99
no ip directed-broadcast
ip ospf network broadcast
frame-relay interface-dlci 512
!
interface Serial1/3.601 point-to-point
description PVC do Lodzi
ip address 194.204.128.25 255.255.255.252
ip helper-address 194.204.153.90
ip helper-address 194.204.153.99
no ip directed-broadcast
ip ospf network broadcast
frame-relay interface-dlci 601
!
interface Serial1/3.711 point-to-point
description PVC do Olsztyna
ip address 194.204.128.21 255.255.255.252
ip helper-address 194.204.153.90
ip helper-address 194.204.153.99
no ip directed-broadcast
ip ospf network broadcast
frame-relay interface-dlci 711
!
i) serdeczne pozdrowienia dla Wiortualnej Polski, ktora zapewne mysli, ze
ma 6mbit do sieci POLPAK i za nie placi. okazuje sie, ze wisi na porcie
2mbit routera, w dodatku dzielac pasmo z innymi:
interface Serial1/5
description CST2 port 40
no ip address
no ip directed-broadcast
encapsulation frame-relay IETF
no fair-queue
clockrate 2000000
!
interface Serial1/5.16 point-to-point
description Akademia Techniczno Rolnicza AS 12618 i 8326
ip address 194.204.132.245 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 16
!
interface Serial1/5.20 point-to-point
description Wirtualna Polska BGP
ip address 194.204.130.145 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 20
!
interface Serial1/5.21 point-to-point
description Wirtualna Polska BGP
ip address 194.204.130.149 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 21
!
interface Serial1/5.22 point-to-point
description Wirtualna Polska BGP
ip address 194.204.130.153 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 22
!
interface Serial1/5.122 point-to-point
description Internet Technologies AS8246 - drugie lacze
ip address 194.204.132.145 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 122
!
interface Serial1/5.136 point-to-point
description Internet Services AS8367
ip address 194.204.129.153 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 136
j) znow to samo: lubman placil za 4mbit do sieci polpak, a wisial na 2mbit
porcie routera wraz z atm i polkomtelem. ciekawe kiedy sprawa zajmie sie
prokurator...
interface Serial1/7
description CST1 port 51
no ip address
no ip directed-broadcast
encapsulation frame-relay IETF
tx-queue-limit 1000
no fair-queue
clockrate 2000000
!
interface Serial1/7.17 point-to-point
description Polkomtel AS8374
ip address 194.204.132.133 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 17
!
interface Serial1/7.18 point-to-point
description ATM AS6714
ip address 194.204.132.157 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 18
!
interface Serial1/7.20 point-to-point
description UMCS AS12346
ip address 194.204.132.213 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 20
!
interface Serial1/7.21 point-to-point
description UMCS drugie lacze AS12346
ip address 194.204.132.241 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 21
!
k) routery polaczone sa wolnym linkiem 10mbit:
interface Ethernet2/0
description do r1.tpnet.pl na eth 2/0
bandwidth 10000
ip address 194.204.128.254 255.255.255.252
no ip directed-broadcast
!
(pozdrowienia dla subskrybentow isp-tech)
l) (dalej jest cala masa bzdurnych portow dla znajomych krolika)
m) a tu wyjasnienie, czemu z sieci NASK tak dobrze pracuje sie w POLPAKu
(lepiej niz z sieci POLPAK w POLPAKu)
interface ATM5/0/0.102 point-to-point
description NASK AS8308
ip address 195.164.16.78 255.255.255.252
ip access-group 101 out
no ip directed-broadcast
no ip mroute-cache
atm pvc 4 1 102 aal5snap inarp
!
(w tym miejscu szczere podziekowania dla dyrekcji NASKu, za to, ze w
przeciwienstwie do POLPAKu woli wydac kase na lacze i dba o swoich
klientow - tak narpawde z NASK dostajemy dzieki temu lepsze czasy po
POLPAKu niz z POLPAKu)
Nie chcialo mi sie przegladac konfiguracji filtrow i BGP, ale pdoejrzewam
ze w paru miejscach trasy sa nieportzebnie wydluzane zeby skierowac ruch
przez innych dostawcow a nie POLPAK. Konradzie: czy sie myle czy mam
przeszukac configa? A moze sam nam wskazesz miejsca - potraktujmy to jako
samokrytyke ;)
Reasumujac:
Na podstawie przytoczonych fragmentow configa podtrzymuje swoje
dotychczasowe opinie nt. sieci POLPAK-T. Posiada ona dosc dobry szkielet
warstwy drugiej oraz totalnie nieudolnie zaprojektowana strukture routing,
dzieki ktorej klienci sa robieni na szaro i dostaja nedzny ulamek pasma za
ktory placa. Jest to z jednej strony zwyczajne oszustwo, z drugiej
przestepstwo niegospodarnosci. Przy okazji okazalo sie, jakiej
przeplywnosci jest lacze miedzynarodowe POLPAKu (zadne 155mbit) dla
klientow.
Przyklady klientow strasznie zrobionych na szaro:
- Wirtualna polska - trzy lacza zbiegajace sie w jeden port 2mbit
wspoldzielony z innymi klientami
- LUBMAN - lacze 4mbit zaterminowane na porcie 2mbit
- inni klienci wymienieni w majlu
Rozwiazaniem jest poproszenie p.Plicha zeby poszukal sobie innej pracy
i przeprojektowanie strutkury routingu w TPSA. Prosze mi wierzyc, ze mozna
to znikomym nakladem srodkow i pieniedzy zrobic...
Chcialbym na koneic po raz kolejny zlozyc serdeczne gratulacje dostawcom
wykupujacym lacza od Telekomunikacji Polskiej S.A. oraz zyczyc wszystkiego
najlepszego jej abonentom. Wszak laczy nas coraz wiecej ;)
pozdrawiam serdecznie,
Andrzej Karpinski
PS. Konrad: Coraz bardziej lubie Cie.. Teraz juz chyba wiesz za co :> CMOK
To archiwum zostało wygenerowane przez hypermail 2.1.7 : Wed 19 May 2004 - 16:29:53 MET DST