Hi Fellow Techies,
I've been trying to tackle this problem for 2 weeks or so and it has become irritating finally I thought i should get your thoughts on this problem. What am i missing ?
This is part of my homelab infrastructure.
InterVLAN routing is working flawlessly, meaning i can ping all vlans and its hosts.The problem is that i can't reach the router 192.168.1.254 from any of my VLANs, though i can reach 192.168.1.1 which is the routed interface (Fe 0/15) on Layer 3 switch.Furthermore i can reach 192.168.1.254 from the layer 3 switch but not from the VLANs
Here is the config from 3550 L3 switch
| 1 | isis#sho run |
| 2 | Building configuration... |
| 3 | |
| 4 | Current configuration : 5711 bytes |
| 5 | ! |
| 6 | version 12.1 |
| 7 | no service pad |
| 8 | |
| 9 | ! |
| 10 | hostname isis |
| 11 | ! |
| 12 | ! |
| 13 | ip subnet-zero |
| 14 | ip routing |
| 15 | ! |
| 16 | no ip domain-lookup |
| 17 | ! |
| 18 | spanning-tree mode pvst |
| 19 | spanning-tree extend system-id |
| 20 | ! |
| 21 | ! |
| 22 | interface FastEthernet0/15 |
| 23 | description To Internet |
| 24 | no switchport |
| 25 | ip address 192.168.1.100 255.255.255.0 |
| 26 | |
| 27 | !Interfaces 0/17 to 0/32 belongs to VLAN 20 |
| 28 | !link to saber |
| 29 | interface FastEthernet0/17 |
| 30 | switchport access vlan 20 |
| 31 | switchport mode access |
| 32 | no ip address |
| 33 | |
| 34 | |
| 35 | !link to pegasus |
| 36 | interface FastEthernet0/18 |
| 37 | switchport access vlan 20 |
| 38 | switchport mode access |
| 39 | no ip address |
| 40 | |
| 41 | |
| 42 | |
| 43 | !link to icarus |
| 44 | interface FastEthernet0/19 |
| 45 | switchport access vlan 20 |
| 46 | switchport mode access |
| 47 | no ip address |
| 48 | |
| 49 | |
| 50 | !Interfaces 0/34 to 0/48 belongs to VLAN 10 |
| 51 | !link to deadalus |
| 52 | interface FastEthernet0/34 |
| 53 | switchport access vlan 10 |
| 54 | switchport mode access |
| 55 | no ip address |
| 56 | ! |
| 57 | |
| 58 | interface Vlan1 |
| 59 | no ip address |
| 60 | ! |
| 61 | interface Vlan10 |
| 62 | ip address 10.10.10.1 255.255.255.0 |
| 63 | ! |
| 64 | interface Vlan20 |
| 65 | ip address 10.20.20.1 255.255.255.0 |
| 66 | ! |
| 67 | ip default-gateway 192.168.1.100 |
| 68 | ip classless |
| 69 | ip route 0.0.0.0 0.0.0.0 192.168.1.254 |
| 70 | ip http server |
| 71 | ! |
| 72 | ! |
| 73 | alias exec c conf t |
| 74 | alias exec s sho ip int br |
| 75 | ! |
| 76 | end |
Pings From Layer3
isis#ping 192.168.1.254 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.254, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms isis#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms isis#ping 10.10.10.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.10.10.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms isis#ping 10.10.10.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.10.10.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms isis#ping 10.20.20.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.20.20.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms isis#ping 10.20.20.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.20.20.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms isis#ping 10.20.20.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.20.20.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms
I can reach my file server pegasus from my workstation saber, and i can reach deadalus which is my ESXi server from saber as well, meaning InterVLAN routing is working.
I've tried equivalent config on Netgear GSM7312 L3gigabit switch and 3COM/HP 4924 L3 gigabit switch and the issue remains unsolved.
Thanks for your support.
