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Webcast-Catalyst9k
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Problem accessing a host from particular network

Hi,

We are experiencing strange issues with our network. Thought I will raise here and look for different views.

We have a problem accessing a host across the WAN from sites starting with ip address 172.31.x.x, but, we also have other IP addresses in 10.x.x.x range which can access this host using the same link. Also, other hosts in the same subnet can be accessed without any issue. However, we could able reach from the problematic host across the WAN to sites with 172.31.x.x address range.

Strange enough, when we trace from 172.31.x.x it drops at the last hop before the host.

No firewall in the path between the host & sites with 172.31.x.x

Rgds, VJ

1 REPLY

Re: Problem accessing a host from particular network

Hi,

can you heck the routing table of the "problematic" host (MS: route print or netstat -r)?

Could be that some application installed a software interface with this subnet internally or some static routes have been added.

My remark is triggered by an experience with the VMware player, which uses a network out of 192.168.0.0/16 (forgot which one) per default.

Regards, Martin

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