ritter.85 WWW WWW RS
Član broj: 316276 Poruke: 9 *.mbb.telenor.rs.
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Pozdrav, imam jedan problem i veoma mi je stalo prvenstveno da ga razumem, a samim tim cu ga i resiti uz neciju pomoc.
Ukratko:
SBB ISP,
TP-LINK openwrt kao router,
Cisco Catalyst sa VLAN-ovima.
192.168.0.0/24 mreza izmedju SBB GW i TP-Link router-a
192.168.1.0/24 mreza izmedju TP-LINK router-a u Cisco L3 switcha
Mreze (VLAN-ovi) na Cisco L3 switch-u
192.168.2.0/24
192.168.3.0/24
192.168.4.0/24
TP-Link je postavljen kao router je nije moguce (bar nisam nasao) dodavanje ruta na SBB-ov GW :(
SBB-TP LINK su povezani preko L3 - VLAN10
Gi0/48 access VLAN10 - SBB LAN - 192.168.0.1/24
Gi0/47 access VLAN10 - TP-LINK WAN - 192.168.0.3/24
VLAN10 int - 192.168.0.2/24
TP-LINK(lan) je povezan na L3
Gi0/46 access VLAN 11 - TP-LINK LAN - 192.168.1.1
VLAN11 int - 192.168.1.2/24
Racunar 192.168.2.20/24 (access VLAN20)
Na L3 postoje neki uredjaji koji su povezani u VLAN10 (192.168.0.0/24).
Npr 192.168.0.10, kome mogu da pristupim samo nakon sto prvo pingujem sa racunara 192.168.0.1.
Ping 192.168.0.10 radi neko vreme, i nakon nekoliko minuta prestane. Proradi ponovo kada pingujem 192.168.0.1.
Da li moze neki "hint" zasto izgubim konekciju ka mrezi 192.168.0.0/24? Nisam primetio da gubim internet konekciju. Dakle internet radi.
Sumnjam na ARP ali nisam primetio da ima nekih promena u tabelama (pc. openwrt, cisco)
Unapred hvala za svaku pomoc.
Vise detalja u nastavku:
----SBB Cisco EPC3925 Voice GW - adresa 192.168.0.1
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TP-LINK OPENWRT
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WAN 192.168.0.3/24
LAN 192.168.1.1/24
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Cisco 3560
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VLAN 10 192.168.0.2
VLAN 11 192.168.1.2
VLAN 20 192.168.2.0/24 (192.168.2.1)
VLAN 30 192.168.3.0/24 (192.168.3.1)
VLAN 40 192.168.4.0/24 (192.168.4.1)
Routing tabele:
1) SBB Cisco EPC3925 nema mogucnost dodavanja ruta, zbog cega je ubacen izmedju TP-LINK
2) TP-LINK openwrt
root@OpenWrt:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0.2
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0.2
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 br-lan
192.168.2.0 192.168.1.1 255.255.255.0 UG 1 0 0 br-lan
192.168.3.0 192.168.1.1 255.255.255.0 UG 1 0 0 br-lan
192.168.4.0 192.168.1.1 255.255.255.0 UG 1 0 0 br-lan
3) Cisco 3560
Switch#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is 192.168.1.1 to network 0.0.0.0
C 192.168.0.0/24 is directly connected, Vlan10
C 192.168.1.0/24 is directly connected, Vlan11
C 192.168.2.0/24 is directly connected, Vlan20
S* 0.0.0.0/0 [1/0] via 192.168.1.1
4) Racunar 192.168.2.20
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.2.1 192.168.2.20 281
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.2.0 255.255.255.0 On-link 192.168.2.20 281
192.168.2.20 255.255.255.255 On-link 192.168.2.20 281
192.168.2.255 255.255.255.255 On-link 192.168.2.20 281
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.2.20 281
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.2.20 281
===========================================================================
Persistent Routes:
Network Address Netmask Gateway Address Metric
0.0.0.0 0.0.0.0 192.168.2.1 Default
PS poruku sam stavio u Enterprise networking jer se mreza ne tice kucnog okruzenja.
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