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Question : IPSEC tunnels of Cisco ISR routers
The link below states the max tunnels each cisco device can establish.
http://www.cisco.com/en/US
/prod/coll
ateral/ios
swrel/ps65
37/
ps6586/
ps6635/ps7
180/
prod_b
rochure091
86a00801f0
a72_ps8768
_Products_
Brochure.h
tml
My questions are,
1. What is the IOS cli command to check how many tunnels are established presently,
say on ISR 2800 series?
2. What is the meaning of "Maximum number of IPSec Tunnels" ?
Does this mean
a . The maximum number of configuration below for example,
crypto isakmp key 6 toshin10 address 172.25.21.1 OR
b. The maximum number of SAs below for example One ACLs for one SA.
Therefore, if we have 6 ACLs, 6 SAs are created.
Also, routers at counter part creates 6 SAs.
Altogether we have 12 SAs.
ip access-list extended IPsec-JA_LIST
permit ip 148.0.0.0 0.255.255.255 172.17.100.0 0.0.3.255
permit ip 148.0.0.0 0.255.255.255 172.17.104.0 0.0.3.255
permit ip 148.0.0.0 0.255.255.255 172.17.201.0 0.0.0.255
permit ip 148.0.0.0 0.255.255.255 148.247.0.0 0.0.255.255
permit ip 148.0.0.0 0.255.255.255 186.156.0.0 0.3.255.255
permit ip 148.0.0.0 0.255.255.255 186.160.0.0 0.3.255.255
Regards.
Answer : IPSEC tunnels of Cisco ISR routers
You can try
Rtr# show crypto ipsec sa
Rtr# show crypto isakmp sa
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