witam czsami mój net się zatrzymuje na kilkanaście sekund tak jakby komp chciał się łączyć poprzez modem po chwili wszystko wraca do norny - ustawiłem mtu na 1500 bo mam radiówke
to moje wyniki ze strony:
http://www.speedguide.net/
TCP options string = 020405b40103030001010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
Default TCP Receive Window (RWIN) = 17520
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 17520
RWIN is a multiple of MSS
Other RWIN values that might work well with your current MTU/MSS:
513920 (MSS x 44 * scale factor of
256960 (MSS x 44 * scale factor of 4)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)
bandwidth * delay product (Note this is not a speed test):
Your TCP Window limits you to: 701 kbps (88 KBytes/s) @ 200ms
Your TCP Window limits you to: 280 kbps (35 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.
MTU Discovery (RFC1191) = ON
Time to live left = 50 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)
co znaczą te opisy?
Your TCP Window limits you to: 701 kbps (88 KBytes/s) @ 200ms
Your TCP Window limits you to: 280 kbps (35 KBytes/s) @ 500ms[img]
z góry dziękuje za pomoc[/img]
Wkleiłem dane z takiego okienka, w którym niby wszystko, co najważniejsze jest napisane.
« SpeedGuide.net TCP Analyzer Results »
Tested on: 01.03.2008 17:38
IP address: 85.198.xxx.xx
TCP options string: 020405b401010402
MSS: 1460
MTU: 1500
TCP Window: 65535 (NOT multiple of MSS)
RWIN Scaling: 0
Unscaled RWIN : 65535
Reccomended RWINs: 64240, 128480, 256960, 513920
BDP limit (200ms): 2621kbps (328KBytes/s)
BDP limit (500ms): 1049kbps (131KBytes/s)
MTU Discovery: ON
TTL: 106
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)
Witam,
Coś z MTU chyba nie tak. Jeżeli routery robią tylko BGP to przede wszystkim bym się pozbył 12.4T bo to są dość niestabilne IOSy na korzyść najnowszego 12.4. Na tym sofcie możesz spróbować wyłączyć PMTUD dla iBGP neighbors za pomocą :
no neighbor x.x.x.x transport path-mtu-discovery
Jesli to jest redukcja MTU po tym jak IPSec poinformowal GRE (rozumiem ze tunnel path-mtu-discovery jest, DF=1) to dzieki temu to w ogole dziala. Wartosc musiala zostac zredukowana bo jest dodatek w postaci nowych headerow. Nie rekomendowalbym fragmentacji po enkrypcji przez IPSec'a; routery nie sa przystosowane do reasemblacji (czy co tam masz).
Pzdr.
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wywalilem ....teraz mam tak ...
version 12.4
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime
service timestamps log datetime msec localtime
service password-encryption
!
hostname Router3
!
boot-start-marker
boot-end-marker
!
card type t1 1
logging buffered 51200 warnings
enable secret 5 xxx
enable password 7 xxx
!
no aaa new-model
!
resource policy
!
ip subnet-zero
no ip source-route
no ip routing
ip tcp path-mtu-discovery
ip telnet source-interface FastEthernet0/1
!
!
no ip cef
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.0.1
!
ip dhcp pool MojeDHCPPLAN
network 192.168.0.0 255.255.255.0
default-router 192.168.0.1
dns-server 194.204.159.1 194.204.152.34
!
!
no ip domain lookup
ip domain name xxx.pl
no vlan accounting output
!
interface FastEthernet0/0
description Polaczenie dla sieci LAN
ip address 192.168.0.1 255.255.255.0
ip nat inside
no ip route-cache
duplex half
speed auto
no mop enabled
!
interface FastEthernet0/1
description Polaczenie dla sieci InternetDSL$ETH-WAN$
ip address 70.100.200.202 255.255.255.248
ip nat outside
no ip route-cache
duplex half
speed auto
no mop enabled
!
interface Serial0/2/0
no ip address
no ip route-cache
shutdown
clock rate 2000000
!
interface Serial1/0:0
no ip address
no ip route-cache
shutdown
!
ip classless
ip route 0.0.0.0 0.0.0.0 70.100.200.201
!
ip http server
ip http access-class 23
ip http authentication local
ip http timeout-policy idle 600 life 86400 requests 10000
ip nat inside source list 10 interface FastEthernet0/1 overload
!
access-list 10 permit 192.168.0.0 0.0.0.255
snmp-server community public RO
no cdp run
dalej lipa .... netu nie ma ....
dhcp krzaczy ... router po podlaczeniu kompa (przez switcha) ....wywala konflikty ...ale adres przydziela ...
pinguje wszedzie po portach .... z routera zpinguje dsla .... ale z kompa juz nie ...
Mam podobny problem [do tego, który był tutaj: http://ccie.pl/viewtopic.php?t=3925, edit: gangrena], tylko w konfiguracji tuneli z protekcją (moje ulubione )
Router (2) w lokalizacji bez VRF, router centralny (1) interfejs internetowy (terminujący IPSEC) w VRFie pozostałe nie.
Ponizej wycinki z konfiguracji:
!ROUTER (1) - centralny
crypto keyring crypto-keys-TP vrf TP
description Klucze przypisane do polaczen przez TP
local-address a.a.a.a
pre-shared-key address a.a.a.a key bleblele
rsa-pubkey address a.a.a.a
address a.a.a.a
key-string
ble ble ble
quit
...
crypto isakmp profile prof-isakmp-TP
vrf TP
keyring crypto-keys-TP
self-identity address
match identity address 0.0.0.0 TP
local-address b.b.b.b
...
crypto ipsec transform-set tr-aes esp-aes 256 esp-sha-hmac
...
crypto ipsec profile prof-ipsec-protection-TP
set transform-set tr-aes
set isakmp-profile prof-isakmp-TP
...
interface Tunnel231
ip address 10.10.228.1 255.255.255.252
ip mtu 1400
ip nat inside
ip virtual-reassembly
ip route-cache flow
ip tcp adjust-mss 1360
qos pre-classify
tunnel source b.b.b.b
tunnel destination a.a.a.a
tunnel mode ipsec ipv4
tunnel path-mtu-discovery
tunnel vrf TP
tunnel protection ipsec profile prof-ipsec-protection-TP
Tunel podnosi się (Tunnel231 is up, line protocol is up) ale nie idzie transmisja. Pakiety z routera (2) przychodzą do (1), ten na nie odpowiada (w tunel) ale nic więcej
Feb 6 20:53:09.691: IP: s=10.10.228.2 (Tunnel231), d=224.0.0.10, len 60, rcvd 2, proto=88
Feb 6 20:53:10.023: IP: s=10.10.228.1 (local), d=224.0.0.10 (Tunnel231), len 60, sending broad/multicast, proto=88
Skonczyly mi się pomysły Problem jest na 100% w routerze (1)
EDIT:
Wydzieliłem ten wątek, gdyż jest to nowy problem, a więc nowy temat.
Pzdr. gangrena
skonfigurowałeś router tak jak ci napisałem ?
pokaż konfig...
Się robi
crypto isakmp client configuration group aaaaa
key *******
pool SDM_POOL_3
acl 103
include-local-lan
netmask 255.255.255.0
interface FastEthernet1
description DSL$ETH-WAN$
ip address xx.xx.xx.xx 255.255.255.248
ip access-group 110 in
ip verify unicast reverse-path
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
ip inspect SDM_MEDIUM out
ip virtual-reassembly
duplex auto
speed auto
crypto map SDM_CMAP_1
!
interface FastEthernet2
description Vlan_101_stacje
switchport access vlan 101
!
crypto ipsec profile SDM_Profile3
set transform-set ESP-3DES-SHA3
set isakmp-profile sdm-ike-profile-3
!
interface Virtual-Template3 type tunnel
ip unnumbered FastEthernet1
tunnel mode ipsec ipv4
tunnel path-mtu-discovery
tunnel protection ipsec profile SDM_Profile3
!
!
interface Vlan101
description Vlan_101_Stacje$FW_INSIDE$
ip address 192.168.1.100 255.255.255.0
ip access-group 100 in
ip nat inside
ip virtual-reassembly
!
ip local pool SDM_POOL_3 192.168.30.100 192.168.30.200
access-list 101 remark Route_ACL
access-list 101 remark SDM_ACL Category=18
access-list 101 remark IPSec Rule
access-list 101 deny ip 192.168.1.0 0.0.0.255 192.168.30.0 0.0.0.255
access-list 101 remark Vlan 101
access-list 101 permit ip 192.168.1.0 0.0.0.255 any
access-list 101 permit ip 192.168.200.0 0.0.0.255 any
access-list 101 permit icmp any any
access-list 101 permit ip any any
!
route-map Def_RouteMap permit 1
match ip address 101
!
mój komp
Karta Ethernet Połączenie lokalne 2:
Sufiks DNS konkretnego połączenia :
Adres IPv4. . . . . . . . . . . . . : 192.168.30.100
Maska podsieci. . . . . . . . . . : 255.255.255.0
Brama domyślna. . . . . . . . . . :
Edit:
Ogólnie kompy podłączone są przez FE 5-9 a ten komp jest bezpośrednio do FE2
MGR
zanotowane.pldoc.pisz.plpdf.pisz.plwpserwis.htw.pl