the 3750 is truly invisible with the tunneling... kind of a shame for such a nice switch, but in the end i probably saved 2 grand between a gns3 server and quad nic's...
a lot of work and a lot to keep straight... layer 3 is working fine... and i haven't seen any mtu inspired errors in ospf yet, having upped the system mtu's where needed...
damn... of course this is on the list:
http://blog.ipexpert.com/2011/02/28/gns3-and-physical-switches-breakout-switch/#more-6136
using ubu 12.04 and it doesn't really dig all the network screwing around... i lost my wireless connection for a few hours...
core1#sh cdp neigh
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,
D - Remote, C - CVTA, M - Two-port Mac Relay
Device ID Local Intrfce Holdtme Capability Platform Port ID
agg1.ozlan Fas 0/1 160 R S I WS-C3560- Fas 0/1
agg1.ozlan Fas 0/2 160 R S I WS-C3560- Fas 0/2
agg2.ozlan Fas 0/5 176 R S I WS-C3560- Fas 0/5
agg2.ozlan Fas 0/6 176 R S I WS-C3560- Fas 0/6
gns3rtr1.ozlan Fas 0/24 179 R 7206VXR Fas 0/0
gns3rtr3.ozlan Fas 0/23 163 R 7206VXR Fas 0/0
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,
D - Remote, C - CVTA, M - Two-port Mac Relay
Device ID Local Intrfce Holdtme Capability Platform Port ID
agg1.ozlan Fas 0/1 160 R S I WS-C3560- Fas 0/1
agg1.ozlan Fas 0/2 160 R S I WS-C3560- Fas 0/2
agg2.ozlan Fas 0/5 176 R S I WS-C3560- Fas 0/5
agg2.ozlan Fas 0/6 176 R S I WS-C3560- Fas 0/6
gns3rtr1.ozlan Fas 0/24 179 R 7206VXR Fas 0/0
gns3rtr3.ozlan Fas 0/23 163 R 7206VXR Fas 0/0
gns3rtr3#sh ip route ospf
Gateway of last resort is not set
1.0.0.0/32 is subnetted, 1 subnets
O 1.0.0.1 [110/2] via 10.30.1.1, 00:02:45, FastEthernet0/0
2.0.0.0/32 is subnetted, 1 subnets
O 2.0.0.2 [110/3] via 10.30.1.1, 00:02:45, FastEthernet0/0
3.0.0.0/32 is subnetted, 1 subnets
O 3.0.0.3 [110/3] via 10.30.1.1, 00:02:45, FastEthernet0/0
4.0.0.0/24 is subnetted, 1 subnets
O 4.0.0.0 [110/3] via 10.30.1.1, 00:02:45, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
O 10.1.10.0/24 [110/2] via 10.30.1.1, 00:02:45, FastEthernet0/0
O 10.1.100.0/24 [110/2] via 10.30.1.1, 00:02:45, FastEthernet0/0
O 10.1.200.0/24 [110/2] via 10.30.1.1, 00:02:45, FastEthernet0/0
172.16.0.0/24 is subnetted, 1 subnets
O 172.16.1.0 [110/2] via 10.30.1.1, 00:02:45, FastEthernet0/0
gns3rtr3#
Gateway of last resort is not set
1.0.0.0/32 is subnetted, 1 subnets
O 1.0.0.1 [110/2] via 10.30.1.1, 00:02:45, FastEthernet0/0
2.0.0.0/32 is subnetted, 1 subnets
O 2.0.0.2 [110/3] via 10.30.1.1, 00:02:45, FastEthernet0/0
3.0.0.0/32 is subnetted, 1 subnets
O 3.0.0.3 [110/3] via 10.30.1.1, 00:02:45, FastEthernet0/0
4.0.0.0/24 is subnetted, 1 subnets
O 4.0.0.0 [110/3] via 10.30.1.1, 00:02:45, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
O 10.1.10.0/24 [110/2] via 10.30.1.1, 00:02:45, FastEthernet0/0
O 10.1.100.0/24 [110/2] via 10.30.1.1, 00:02:45, FastEthernet0/0
O 10.1.200.0/24 [110/2] via 10.30.1.1, 00:02:45, FastEthernet0/0
172.16.0.0/24 is subnetted, 1 subnets
O 172.16.1.0 [110/2] via 10.30.1.1, 00:02:45, FastEthernet0/0
gns3rtr3#
gns3rtr1#ping 10.30.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.30.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/19/20 ms
gns3rtr3#ping 10.1.10.112
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.10.112, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 8/11/12 ms
i'm going to build the 3 tshoot topologies also... once i get comfortable with it, i'll post a step by step...
quick tip... sudo /etc/init.d/networking restart has been deprecated... the new command is sudo service networking restart... that's a command you'll use often...
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