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Cisco Bug: CSCum90946 - Routing LOCAL LAN subnet when Split-Include is Supernet of LOCAL subnet

Last Modified

Apr 30, 2020

Products (1)

  • Cisco AnyConnect Secure Mobility Client

Known Affected Releases

3.1(4072) 3.1(5152) 4.0(61)

Description (partial)

Symptom:
If the split-include network is a supernet of a local subnet on the client host (e.g. 192.168.0.0/16, local subnet 192.168.1.0/24), the corresponding traffic will be tunneled, except the local subnet traffic which will be allowed in the clear.

Conditions:
Split-include tunneling configuration with split-include network overlapping the local subnet on the client host.

Related Community Discussions

ASA Access-List with 0.0.0.0/32?
Hello All,   ASA: v9.4(1) AnyConnect: v4.5   According to the AnyConnect 4.5 Release Notes (*click for explanation). The section: &quot;New Split Include Tunnel Behavior (<key>CSCum90946</key>)&quot; says that, formerly, in order for the split-tunnel to tunnel a client's traffic to their local subnet (*while on AnyConnect VPN), and the split-include network was a Supernet of a Local Subnet, the local subnet traffic was not tunneled unless a split-include network that exactly matches the Local Subnet was configured.   ...
Latest activity: Jun 29, 2018
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