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Beginner

Sub-interfaces on PO

Hi, I have put 2 physicl interfaces (te0/8 & 9) on the ASA-5585 into a PO and am assigning ips/vlans to the sub-interfaces. I have 2 issues: - Why am I not able to ping the other sub-interface from the ASA itself? (I can ping the 1st one), Secondly, why the IPs are not visible in "sh int ip brief" ?Although I can see them in "sh ip" ..

/actNoFailover(config-if)# int po17.100

/actNoFailover(config-subif)# vlan 100

/actNoFailover(config-subif)# ip add

/actNoFailover(config-subif)# ip address 100.1.1.1 255.255.255.0

/actNoFailover(config-subif)# int po17.101

/actNoFailover(config-subif)# vlan 101

/actNoFailover(config-subif)# ip address 101.1.1.1 255.255.255.0

/actNoFailover(config-subif)# int po17.102

/actNoFailover(config-subif)# vlan 102

/actNoFailover(config-subif)# ip address 102.1.1.1 255.255.255.0

/actNoFailover(config-subif)# ping 100.1.1.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 100.1.1.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 30/32/40 ms

/actNoFailover(config-subif)# ping 101.1.1.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 101.1.1.1, timeout is 2 seconds:

?????

/actNoFailover(config)# sh int ip brie

Interface                  IP-Address      OK? Method Status                Protocol

TenGigabitEthernet0/8      unassigned      YES unset  up                    up

TenGigabitEthernet0/9      unassigned      YES unset  up                    up

Port-channel17             unassigned      YES unset  up                    up

Port-channel17.100         unassigned      YES manual up                    up

Port-channel17.101         unassigned      YES manual up                    up

Port-channel17.102         unassigned      YES manual up                    up

Please advise?

2 REPLIES 2
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Beginner

Ok, i found the answer: - You have to assign "nameif" to the subinterfaces, they are pinging now and also  the ips are visible in "sh int ip brief".

Highlighted

Hello Sande,

That is correct! Please mark this question as answered so future users having a similar problem can learn from your

solution.

Regards,

Julio

Julio Carvajal
Senior Network Security and Core Specialist
CCIE #42930, 2xCCNP, JNCIP-SEC
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