Configuring GTP Flow

Enable GTP Parsing
Reference
Command
gtp no gtp
Description
Global GTP Parsing
Parameters
None
Mode
EXEC
Example
//enabling GTP
pbnoscli(config)# gtp
//disabling GTP
pbnoscli(config)# no gtp
GTP Rule Match For Inner Headers
Using the following commands, you can configure a rule with GTP packet qualifiers to monitor the packets.
GTP and UDF can not be configured together on a device
Reference
Command
rule <ruleid> ( permit ) [description <cstring>] [gtp <gtpexpression> ] [counters (enable | disable)]
no rule <ruleid>
Description
Rule Configuration
Parameters
ruleid: It should be in the range 1 to 6000 description: max 50 characters.
gtp Example qualifiers: teid - Tunnel ID, match-all-ipv4 - Match all inner IPv4, match-all-ipv6 - Match all inner IPv6 ,inner-sip - Inner IP Source Address, inner-dip - Inner IP Destination Address, inner-protocol - Inner Header Protocol, inner_l4srcport - Inner Header UDP Source Port, inner_l4destport - Inner Header UDP Destination Port
Mode
FLOW
Example
pbnoscli# configure terminal
pbnoscli(config)# flow flow01
pbnoscli(config-flow-flow01)# network-ports Ethernet1/1
pbnoscli(config-flow-flow01)# tool-ports Ethernet4/1
pbnoscli(config-flow-flow01)# rule 1 permit gtp "teid 0x11112222 inner-sip 10.10.10.10/24 inner-dip 20.20.20.20/24 inner_protocol tcp inner_l4srcport 2152 inner_l4destport 2153" counters enable
pbnoscli(config-flow-flow01)# rule 2 permit gtp "teid 0x11112222 inner-sip 1001:11::1 inner-smask ffff:: inner-dip 2002:22::2 inner-dmask f::f inner_protocol tcp inner_l4srcport 2152 inner_l4destport 2153
pbnoscli(config-flow-flow01)#
To verify flow, use the following command:
pbnoscli# show flow summary
Flow-Name Rule-Id Status Counter-Value
=========================================================
flow01 2 Active 3574
flow01 1 Active 1123
pbnoscli#
pbnoscli# show flow all
===================================
Flow : flow01 (CLI)
===================================
Status : enable
Network-Port : Ethernet1/1
Tool-Port : Ethernet4/1
Rule : 1
++++++++++++++++++++++++++++++++++
TEID : 0x11112222
Inner Source IP : 10.10.10.10
Inner Source Mask : 255.255.255.0
Inner Destination IP : 20.20.20.20
Inner Destination Mask : 255.255.255.0
Inner Protocol : tcp
Inner Source l4port : 2152
Inner Destination l4port : 2153
Action : permit
Counters : enable
Rule : 2
++++++++++++++++++++++++++++++++++
Inner Source IP : 1001:11::1
Inner Source Mask : ffff::
Inner Destination IP : 2002:22::2
Inner Destination Mask : f::f
Inner Protocol : tcp
Inner Source l4port : 2152
Inner Destination l4port : 2153
Action : permit
pbnoscli#
pbnoscli# show running-config
configure terminal
gtp
interface ethernet Ethernet120
forward-error-correction rs
type network
!
interface ethernet Ethernet124
forward-error-correction rs
type tool
!
interface mgmt
ip address 10.4.4.52/24 gateway 10.4.4.1
!
flow flow01
network-ports Ethernet1/1
tool-ports Ethernet4/1
rule 1 permit gtp "teid 0x11112222 inner-sip 10.10.10.10/24 inner-dip 20.20.20.20/24 inner_protocol tcp inner_l4srcport 2152 inner_l4destport 2153" counters enable
rule 2 permit gtp ""teid 0x11112222 inner-sip 1001:11::1 inner-smask ffff:: inner-dip 2002:22::2 inner-dmask f::f inner_protocol tcp inner_l4srcport 2152 inner_l4destport 2153"
!
pbnoscli#
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