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What we tried to do in the end was creating a list of all cisco routers where we noted for every one of them: IOS Software version System Image file used FPGA Version For those routers that had a connection problem, we found similarities in the IOS version, image file and FPGA version. In the end, what the local distributor of the cisco router found out ...


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Basically, you take any single private or public network and you create multiple networks from it (to provide addresses for different locations, security zones, better scaling, ...). how [..] does that work when your network is assigned a single public IP? It doesn't. You need a network to start with. If for example my router's assigned public IP address ...


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IP addresses from 224.0.0.0/4 are multicast addresses. They cannot be used as source address or for unicast. Unless you actually own the IP address range you might want to stick to RFC 1918 private addresses: 192.168.0.0/16, 172.16.0.0/12 and 10.0.0.0/8.


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Solution: it was faulty SIP/SPA module, cisco replace hardware.


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If you use the following command, your problem will be solved. no ip dhcp snooping information option for example,my configuration: sw1-f1-msh-p#show run | s snooping ip dhcp snooping vlan 201,706,3200-3272 no ip dhcp snooping information option ip dhcp snooping trust


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