topic ASA5520; subinterface; Interface vlan; Trunk in Network Security https://community.cisco.com/t5/network-security/asa5520-subinterface-interface-vlan-trunk/m-p/1049456#M893675 <P>Hi,</P><P></P><P>I have a doubt with respect to Trunking in ASA 5520. Is the below possible:-</P><P></P><P>Two sub interfaces in one vlan</P><P></P><P>int g0/1.1</P><P>switchport access vlan2</P><P>int g0/1.2</P><P>switchport access vlan2</P><P></P><P>interface vlan 2</P><P>nameif blah</P><P>ip 1.1.1.1 255.255.255.0</P><P>sec 20</P><P>no sh</P><P></P><P>interface g0/2</P><P>switchport mode trunk</P><P>switchport trunk encapsulation dot1q</P><P>switchport trunk allowed vlan 2</P><P></P><P>Is the above possible in ASA5520?</P><P></P><P>Thnaks in advance</P><P>Sonu.</P> Mon, 11 Mar 2019 14:12:09 GMT Sonugnair_2 2019-03-11T14:12:09Z ASA5520; subinterface; Interface vlan; Trunk https://community.cisco.com/t5/network-security/asa5520-subinterface-interface-vlan-trunk/m-p/1049456#M893675 <P>Hi,</P><P></P><P>I have a doubt with respect to Trunking in ASA 5520. Is the below possible:-</P><P></P><P>Two sub interfaces in one vlan</P><P></P><P>int g0/1.1</P><P>switchport access vlan2</P><P>int g0/1.2</P><P>switchport access vlan2</P><P></P><P>interface vlan 2</P><P>nameif blah</P><P>ip 1.1.1.1 255.255.255.0</P><P>sec 20</P><P>no sh</P><P></P><P>interface g0/2</P><P>switchport mode trunk</P><P>switchport trunk encapsulation dot1q</P><P>switchport trunk allowed vlan 2</P><P></P><P>Is the above possible in ASA5520?</P><P></P><P>Thnaks in advance</P><P>Sonu.</P> Mon, 11 Mar 2019 14:12:09 GMT https://community.cisco.com/t5/network-security/asa5520-subinterface-interface-vlan-trunk/m-p/1049456#M893675 Sonugnair_2 2019-03-11T14:12:09Z Re: ASA5520; subinterface; Interface vlan; Trunk https://community.cisco.com/t5/network-security/asa5520-subinterface-interface-vlan-trunk/m-p/1049457#M893681 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>Nope that is not possible. Every sub-interface must have a unique VLAN ID. </P><P></P><P><A class="jive-link-custom" href="http://www.cisco.com/en/US/docs/security/asa/asa71/configuration/guide/intrface.html#wp1044006" target="_blank">http://www.cisco.com/en/US/docs/security/asa/asa71/configuration/guide/intrface.html#wp1044006</A></P><P></P><P></P><P>please rate helpful posts </P><P></P><P></P></BODY></HTML> Wed, 12 Nov 2008 10:30:06 GMT https://community.cisco.com/t5/network-security/asa5520-subinterface-interface-vlan-trunk/m-p/1049457#M893681 Fernando_Meza 2008-11-12T10:30:06Z