1# ipdebug<a name="EN-US_TOPIC_0000001134006272"></a> 2 3- [Command Function](#section10191115553720) 4- [Syntax](#section124061758123713) 5- [Usage](#section171837113810) 6- [Output](#section561416467104) 7 8## Command Function<a name="section10191115553720"></a> 9 10**ipdebug** is a console command and is used for IPv6 information debugging. It can display IPv6 address prefixes, neighbor entries, destination cache entries, and default routing entries. 11 12## Syntax<a name="section124061758123713"></a> 13 14ipdebug 15 16## Usage<a name="section171837113810"></a> 17 18Run the **ipdebug** command. 19 20## Output<a name="section561416467104"></a> 21 22The **ipdebug** output is as follows: 23 24``` 25OHOS # ipdebug 26================= 27|| Prefix List || 28================= 29Prefix validLifetime Flags 30============================================================================================== 312001:: 86384 1 32---------------------------------------------------------------------------------------------- 33============================ 34|| Neighbor Cache Entries || 35============================ 362001::1 dev eth0 lladr 44:39:C4:94:5D:44 STALE Router 37FE80::4639:C4FF:FE94:5D44 dev eth0 lladr 44:39:C4:94:5D:44 REACHABLE Router 38-------------------------------------------------------------------- 39=============================== 40|| Destination Cache Entries || 41=============================== 422001::1 2001::1 pmtu 1500 age 152 43FE80::4639:C4FF:FE94:5D44 FE80::4639:C4FF:FE94:5D44 pmtu 1500 age 6 442002::1 FE80::4639:C4FF:FE94:5D44 pmtu 1500 age 17 45:: :: pmtu 0 age 219 46:: :: pmtu 0 age 219 47:: :: pmtu 0 age 219 48:: :: pmtu 0 age 219 49:: :: pmtu 0 age 219 50:: :: pmtu 0 age 219 51:: :: pmtu 0 age 219 52-------------------------------------------------------------------- 53============================ 54|| Default Router Entries || 55============================ 56FE80::4639:C4FF:FE94:5D44 invalidation_timer 1784 flags 0 57-------------------------------------------------------------------- 58``` 59 60