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Well, I have configured on the main VPN router which has all the VPN tunnels configured. I do experience timeouts and latency at the remote sites which do not have that setting configured. 
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Well, I have configured on the main VPN router which has all the VPN tunnels configured. I do experience timeouts and latency at the remote sites which do not have that setting configured.

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I have a question on ip tcp mss-adjust. We have about 12 site to site ipsec tunnels configured on our VPN router. I noticed on the VPN router that has all the tunnels configured at the main location it has &quot;ip tcp mss-adjust 1400&quot; on the outbound interface but when I look at the routers at the remote locations I do not see the &quot;ip tcp mss-adjust&quot; configured on any interface. Shouldn't I have this configured on every router? And if so, on which interface should I have it on?
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I have a question on ip tcp mss-adjust. We have about 12 site to site ipsec tunnels configured on our VPN router. I noticed on the VPN router that has all the tunnels configured at the main location it has "ip tcp mss-adjust 1400" on the outbound interface but when I look at the routers at the remote locations I do not see the "ip tcp mss-adjust" configured on any interface. Shouldn't I have this configured on every router? And if so, on which interface should I have it on?

ip tcp mss-adjust

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

Internet Protocol Security (IPsec) is a protocol suite for secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session. IPsec includes protocols for establishing mutual authentication between agents at the beginning of the session and negotiation of cryptographic keys to be used during the session. IPsec can be used in protecting data flows between a pair of hosts (host-to-host), between a pair of security gateways (network-to-network), or between a security gateway and a host (network-to-host). IPsec is an end-to-end security scheme operating in the Internet Layer of the Internet Protocol Suite.